2024年2月8日发(作者：)
I、Overview
The Winch, has passed testing and inspecting of the authoritative departments and obtained license
for production of construction winch issued by the General Administration of Quality Supervision,
Inspection and Quarantine in China. The quality of winch conforms to the standard of GB/T 1955-2008
construction winch. Issued by the national quality supervision and inspection and Quarantine Bureau of
industrial products production license, license number: XK21-004-00214.
Construction winch is used for operations such as winching and towing heavy things, erecting
equipment, piles driving, and coldly pulling reinforcing steel bar in such industries as constructions,
metallurgy, mines, weight lifting. The working surroundings to which the winch is applicable are:
temperature -10℃～+40℃ ( when surrounding temperature is below 00C, before start-up, lubricating
oil should be heated up), humidity ≤85%，altitude below 1000m, no fire and explosion accident and so
on. It uses 380V，50Hz, 3-phase alternating current power supply and ±5% tolerable voltage
difference. Working grades of winch in use are M4 or M5; when increasing every grade working grade,
its rated pull should correspondingly reduce 20%.
Method indicating types of winch:
J
Main parameter code:
rated pull of steel wire rope KN×10-1
Structure code： Humping type-L
Turban retarder-W
Pyramidal electromotor braking-D
Cylindrical and teeth volume retarder
(omitted)
Trait code：
fast-K
Slow-M
Regulated speed-T
Category code：Winch
Type code：Double reeling drum is numbered 2; single reeling drum
is omitted here.
Examples of method indicating types of winch:
Single reeling drum fast speed winch with 32kN steel wire rope’s rated pull
Winch JK3.2 GB/T1955-2008
1
Single reeling drum slow speed winch with 50kN steel wire rope’s rated pull
Winch JM5 GB/T1955-2008
II、Structure and Working Principle
Structure Figure maps of JK fast speed winch and JM slow speed winch can be seen in Figure 1 and
Figure 2 respectively. Electrically-controlled winch implements its operations or braking through
connecting or disconnecting power supply. When connecting electrical source, band-type brake of
normally-closed brake（3）arrester will loose; electromotor（1）starts up; Then shaft coupling（2）drives speed retarder（5）; After reducing the speed of the speed retarder, through the drive of
connecting tray（6） or open-style gear wheel（6）, the reeling drum（7）starts to work. When
stopping machine, disconnect electrical source and normally-closed brake arrester will hold the braking
wheel to make the reeling drum stop revolving, then the winch stops its running. Rising or falling of
materials is reached through clockwise revolving and counterclockwise revolving.
Figure 2 JM type electrically-
Figure 1 JK type electrically-controlled slow speed winch Figure
controlled fast speed winch Figure
1-motor 2-shaft coupling 3-brake 4-cam 1-motor 2- shaft coupling 3- brake
control 5-decelerator 6-inner gear connecting 4- cam control 5- deceleraror 6-open-tray 7-reeling drum 8-chassis style gear wheel 7-reeling drum 8- chassis
2
III、Technical Parameters table
Technical parameter table for electrically-controlled fast speed winch
Type
Parameter
Rated pull（kN）
Rated speed（m/min）
Reeling drum’s rope
JK0.5 JK1 JK1.6 JK2
5
22
190
10
22
100
NAT6×37S+FC
Φ9.3
Y112M-4
4
YWZ4-100/18
620×701×417
16
24
150
NAT6×37S+FC
Φ12.5
Y132S-4
5.5
YWZ4-200/25
945×996×570
20
24
150
NAT6×37S+FC
Φ13
Y132M-4
7.5
YWZ4-200/25
945×996×570
capacity（m）
Steel wire Specification NAT6×37S+FC
rope
DiameterΦ7.7
（mm）
motor Type
Power（kW）
Brake
Appearance
measurements(length×
width × height)
Weight of entire machine（kg）
Y100L2-4
3
YWZ4-100/18
620×701×417
200 300 500 550
Technical parameter table for electrically-controlled fast speed winch
Type
Parameter
Rated pull（kN）
Rated speed（m/min）
Reeling drum’s rope capacity（m）
Steel wire rope Specification
Diameter（mm）
Electromotor
Brake
Appearance
Type
Power（kW）
JK3.2 JK5 JK8
32
25
290
NAT6×37S+FC
Φ15.5
YZR180L-6
15
YWZ4-300/45
1325×1335×840
3
50
30
300
NAT6×37S+FC
Φ21.5
YZR225M-6
30
YWZ4-300/45
1900×1620×985
80
25
160
NAT6×37S+FC
Φ26
YZR280S-8
45
YWZ4-400/90
1533×1985×1045
measurements(length× width ×
height)
Weight of entire machine（kg）
1011 2050 3000
Technical parameter table for electrically-controlled slow speed winch
Type
Parameter
Rated pull（kN）
Rated speed（m/min）
JM1 JM1.6 JM2 JM3.2(4-bearing
style)
32
12
195
NAT6×37S+FC
Φ15.5
YZR160M-6
7.5
JM3.2(open-style
gear wheel)
32
9.5
150
NAT6×37S+FC
Φ15.5
YZR160M-6
7.5
10
15
16
16
150
NAT6×37S+FC
Φ12.5
Y132M2-6
5.5
YWZB-200/25
945×996×570
500
16
16
150
NAT6×37S+FC
Φ13
Y160M-6
7.5
YWZB-200/25
945×996×570
550
Reeling drum’s rope 100
capacity（m）
Steel wire Specification NAT6×3rope 7S+FC
Diameter（mm）
Electromotor
Type
Power（kW）
Brake
Appearance
measurements(length×
width × height)
Weight of entire machine（kg）
Type
Parameter
Rated pull（kN）
Rated speed（m/min）
JM5 (4-bearing
style)
50
10
YWZB-100/18
620×701×417
270
Φ9.3
Y112M-6
3
YWZB-200/25 YWZB-200/25
1082×1014×610
800
1430×1160×910
1100
JM5(open-style gear
wheel)
50
9.5
190
NAT6×37S+FC
4
JM8(4-bearing
style)
80
10
350
NAT6×37S+FC
JM8(open-style gear
wheel)
80
8
250
NAT6×37S+FC
JM10(open-style
gear wheel)
100
8
170
NAT6×37S+FC
Reeling drum’s rope 270
capacity（m）
Steel wire Specification NAT6×3rope 7S+FC
Diameter（mm）
Electromotor
Type
Power（kW）
Brake arrester
Appearance
measurements(length×
width × height)
Weight of entire machine（kg）
Φ21.5
YZR160L-6
11
YWZB-300/45
1235×1230×805
1560
Φ21.5
YZR160L-6
11
YWZB-300/45
1620×1260×945
1800
Φ26
YZR180L-6
15
YWZB-300/90
1075×1598×985
2650
Φ26
YZR180L-6
15
Φ30
YZR200L-6
22
YWZB-300/90 YWZB-300/90
2090×1475×956
2900
2090×1475×956
3000
IV、Installation and Testing
1. When installing, dismantling and moving the winch, it is necessary to keep stable and being not
overly oblique without any clashes and fierce vibration.
2. Installation of winch
Its installation should be completed by professionals. The ground for installing the winch should be
leveled off and much solid. The connection between winch and base should be reliable.
2.1 When mobile using, fix the winch to timber sleepers block, and reliably and tightly connect timber
block and chassis to ground anchor with steel wire rope. Be aware of avoiding any looseness.（See
Figure 3）
Steel wire rope
Round bar
Figure 3 horizontal ground anchor
Steel wire rope
Winch
5
This installing method is suitable to winch being less than 3 tons. Concrete measurements for
installation need to refer to such conditions as soil quality, soil specific gravity and earth stamina, and
are determined by ground anchor standard pictures appropriate to local use.
2.2 When using in a fixed place, make concrete groundwork, and find the horizontal lines by using a
gradienter, and leave in advance a square-type hole with a section of 20x20(cm2) （See Figure 4）;
number of hole is decided by foundation bolt of the winch(see Figure 4).At first, fixing the foundation
bolt, then inject concrete into holes; after ossifying, evenly tighten the nuts. If there are rooms between
chassis and lower interface, add adjusting mat so as to prevent partly deforming of chassis. Hole depth
of foundation should be determined according to local geological condition and type of winch(L,L1
value in the table only for reference).
decelerator
central
line
Reeling drum central line
motor central line
Figure 4 Layout Figure of concrete foundation bolt
Installation measurements table for electrically-controlled fast speed winch
Type JK0.5
Parameter
A(mm)
B(mm)
C(mm)
n-d(mm)
L1(mm)
L(mm)
Type
Parameter
A(mm)
667
420
0
4×Φ14
400
350
JM1
667
JK1
667
420
0
4×Φ14
400
350
JM1.6
956
JK1.6
956
560
0
4×Φ17
450
300
JM2
956
JK2
956
560
0
4×Φ17
450
300
JK3.2
1270
900
0
4×Φ22
600
540
JK5
1560
1090
545
6×Φ25
700
640
JK8
1550
1218
579
6×Φ32
850
780
Installation measurements table for electrically-controlled slow speed winch
JM3.2
(4-bearing style)
968
6
JM3.2
(open-style gear wheel)
920
B(mm)
C(mm)
n-d(mm)
L1(mm)
L(mm)
Type
Parameter
A(mm)
B(mm)
C(mm)
n-d(mm)
L1(mm)
L(mm)
420
0
4×Φ14
400
350
JM5
(4-bearing
style)
1180
1150
575
6×Φ22
600
540
560
0
4×Φ17
450
300
560
0
4×Φ17
450
300
790
0
4×Φ17
600
550
JM8
(4-bearing
style)
1538
1250
625
6×Φ25
800
740
900
0
4×Φ22
600
540
JM8
(open-style gear
wheel)
1400
1400
700
6×Φ25
800
740
JM10
(open-style gear
wheel)
1400
1400
700
6×Φ25
800
740
JM5
(open-style gear
wheel)
1113
1140
570
6×Φ25
600
540
2.3 The running direction of steel wire rope of the winch usually is horizontal; the direction of running
rope is in accordance with actual situation, from the underside of reeling drum or other directions. The
deviation angle αvalue of horizontal reeling and extending of steel wire rope must in conformity with
stipulations in Table 1. L value should normally equal 20 times Bt width of reeling drum, but ensuring α
value to be in line with Table 1, and the location of guiding pulley (see Table 2)to be on vertical bisector
(see Figure 5). The ratio of Pitch diameter of all pulleys and diameter of steel wire rope should be less
than stipulations in Table 2.
Table 1 steel wire rope’s running rope deviation angel αlimit value
method of running rope
running rope deviation
angle
Grade for working
h Pulley
Balanced pulley
groove surface
reeling drum
α≤4°
smooth surface reeling drum
naturally running rope
α≤2°
running rope by using
running rope device
α≤4°
Table 2 ratio of Pitch diameter of pulleys and diameter of steel wire rope
M1
12.5
11.2
M2
14
12.5
M3
16
M4
18
14
M5
20
M6
22.4
16
M7
25
M8
28
18
7
2.4 The winch working in the air should be sheltered by a rainproof canopy, which can’t obstruct
operators’ eyesight and operators should be able to see the commanders and dragging objects.
2.5 Metal shells of structure and electrical devices of
the winch should be evenly connected to the earth.
Earth connecting resistance should not more than
4Ω.Choosing and installing of earth connecting
devices should conform to stipulations of GB/T232.
2.6 When used for winching heavy things, the winch
should be fixed with ascending overtravel limit
switch.
2.7 Notch panel type pulley is prohibited from using
when choosing guiding pulley.
Reeling drum
2.8 The safety circling number of steel wire rope on
reeling drum shouldn’t be less than 3 circles. The end
of steel wire rope should be reliably fixed. In order to
ensure safety the distance from outside layer of steel
wire rope to outside edge of side board of reeling
Guiding rope
drum should not be less than steel wire rope’s
pulley
diameter.
2.9 The connection area between brake block and
Figure 5
brake wheel shouldn’t be less than 80% of the total
area. When loosening braking, the brake block must
be completely separated from braking, and maintain certain clearance. The value of clearance are 1～2.5mm between brake strap and brake wheel, 0.25～1mm between brake block and brake wheel.
V、Choosing of Steel Wire Rope
1. Steel wire rope used for winch should conform to stipulations of GB/T20118 and linear contact lay
wire rope should be a priority for use. Safety parameter of steel wire rope (specific value between
minimum breaking force of steel wire rope and rated load of winch) shouldn’t be less than Ka value
stipulated in Table 3.
Table 3 Safety parameter Ka of steel wire rope
Grade of
working
M1 M2
3.35
M3
3.55
M4
4.0
M5
4.5
M6
5.6
M7
7.1
M8
9.0 Safety 3.15
parameter Ka
2. The size of pulley rope slot should be about 10% more than nominal diameter of steel wire rope.
3. Steel wire rope should have good lubrication; usually adopt lubricating oil with moderate and low
8
viscidity; domestically-made oil for steel wire rope is recommended for use.
4. In the environment of outdoor, humidity and erosion medium existing, choose galvanized steel wire
rope.
5. If finding one of the following cases, please use new wire rope.
5.1 Surface layer wire diameter of steel wire rope was worn down and erosion rate is up to 40% of its
original diameter.
5.2 Diameter of steel wire rope has reduced 7%.
5.3 Stranded or broken wire is discovered.
5.4 The core cord of the entire steel wire rope has been squeezed out.
5.5 For any things not detailed, inspect and discard as useless according to stipulations of GB/T 5972.
VI、Regulations for Operation
Preparation:
1. Construction winch should be operated by workers who have been well-trained and are familiar
with regulations for safe operation.
2. Check out oil quantity and purity in speed retarder and brake arrester and see if there is oil in all
lubricating parts (see page 9, Table for machine lubricating scope)
3. Confirm the type, scope applied, working grade, rated load, rated speed, rope capacity etc. of the
winch are in conformity with conditions for using. Overloading is strictly prohibited.
4. Check if steel wire rope has been fixed reliably, and if there are stranded or broken threads in steel
wire rope.
5. If the electrical device consists of motor, control box and alternating current cam controller,
handlebar should be placed on “0”positon.
6. Before operating winch, firstly make a test-run for 5 minutes. After satisfying the following
requirements, normal operation can be conducted.
6.1 Brake is smooth and steady, safe and reliable; its actions are accurate and flexible (regulating
method of brake arrester can be seen in detail in users’ manual of brake arrester.
6.2 Actions of all driving parts and gliding parts are flexible without such phenomena as overly big noise
and being stuck.
6.3 No any looseness in all linked parts
Operation:
1. Turn on electrical source, according needed direction, turn the handwheel of cam control; after
running of electromotor is smooth and steady, and turn to next position, up to maximum gear.
normal circumstances, to stop the machine just needs to rotate the brake arrester to
“0”position; at that time, resistor’s resistance will be gradually added to rotor circuit, rotating speed of
electromotor will decrease, hydraulic pressure brake arrester starts to work, and then main device stops
running.
3．When in use of weight lifting electrical device, cam control can’t regulate speed; it only can be used
9
to switch resistance buffer start and can’t work on lower gear; it is required to regularly inspect
dampproof condition of the electrical device. Principle drawing of electrical device can be seen in
Appendix 2
Requirements for use:
1. The voltage of motor shouldn’t exceed 5% of rated value. The electromotor cannot be used in
exceeding its continuous electric connection rate and maximum number of starting up.
2. Don’t connect the braking reversely; when wanting to realize humping placement, don’t manually
open the power-controlled brake controller.
3. When the winch is in the state of working, operators cannot be off the operating position.
4. Do not take the liberty of transforming the winch.
5. Maximum load, withstood by datum layer and steel wire rope in various layers within datum layer, is
the rated load. Maximum load, withstood by steel wire rope in various levels outside the benchmark
level, is less than rated load. For added one layer, the pull force will relatively reduce 10% of rated pull
force.
6. When operating the host, steel wire rope can’t be dragged running on the ground; if necessary, install
supporting roller or grooved roller. When steel wire rope crosses driveways, protective devices should
be added so as to avoid persons treading on it and cars crushing on it. It is prohibited for people to
cross the running steel wire rope or pass before the winch. Carrying workers on the site by the winch
is not allowed.
7. When winching by using many winchs, traction speed and weightlifting capability of winchs must be
identical. United directing, united action and synchronized operation are necessary.
8．During operation, operators should focus all their attentions on working and strictly follow the
rules for operation, and, under urgent and risky circumstances, immediately stop their operation
against risk signals like crying and calling send out by any people. After making clear the situations,
continue their operations.
9. When such phenomena as abnormal mechanism, abnormal sound, failure of braking, sharply rising
of bearing temperature, etc. has occurred in winch operation, immediately stop running for inspect and
repair and remove breakdowns.
10. The steel wire rope should be neat and tidy. When overlapping or oblique winding is found, stop the
machine to cope with it. When in revolving, pulling or treading on steel wire rope by hand or feet are
strictly prohibited.
11. When winching heavy things but keeping load for a longer time, please close the stop stopper;
before running the machine again, loosen the stop stopper.
12. If running the machine with heavy things, Braking by using stop stopper is strictly prohibited, use
brake and gradually add force for braking. If adding force abruptly and forcefully, the machine will be
possibly damaged.
13. After ending work, heavy things must be placed on the ground; hanging heavy things in the air is
not allowed.
10
14. Before getting off duty, clean and maintain the winch, cut off the power supply and lock the switch
box.
VII、Repair and Maintenance
1. The driving part of the winch such as reeling drum bearing, hinge of brake arrester and shaft pin of
various parts, should be added some lubricant once before each shift’s operation. Every 48 hours of
operation by using steel wire rope, the guiding pulley should be lubricated once. The height reached by
lubricating oil surface in decelerator box should be within the scope of dipstick; under normal
circumstance, check it once every week, and replace it once every half a year.
2. After the winch’s running for 300 hours, carry out grade 1 maintenance, lubricate the entire machine
again, check and adjust the brake , check the decelerator and replace with or add new lubricating oil to
the height designated of oil surface.
3. After the winch’s running for an accumulative working of 600 hours, carry out grade 2 maintenance
and measure insulated resistance of electromotor; check the state of wearing down for rubbed surface,
all involving parts, and rubber loop of connecting parts; check the state of all parts of gear wheel
bearing and electrical components. If affecting the use of machine, please replace them at once.
4. Every day, running of winch should be recorded in the list for recording running state; the contents of
recording daily include working hours and load, and inspection, repair, adjustment and so on.
5. Inspection and maintenance of winch should in conformity with the following regulations.
5.1 The winch should have everyday inspection and regular inspection. Cycle, items, method and
standard of inspection should according to regulations in appendix 1. When frequently using or using in
a special place or environment, inspection of winch should add other items.
5.2 Inspection, maintenance and repair should be implemented by professionals.
5.3 During inspection and repair, pay attention to people’s safety. Apart from items for inspection or
repair carried out necessarily in a state of starting up, inspection and repair of other items must be
carried out after discharging load, shutting off power supply and locking up the power switch. The items
for inspection and repair in a state of starting up, should be carried out at least by two people; one
person among them should take charge of watching for safety of the other personnel, and be able to
immediately stop the winch’s running under any special circumstances.
5.4 After maintenance and repair, please inspect the winch according to inspecting items stipulated in
Appendix 1.
5.5 After the winch reached the aggregate working hours identified according to its using conditions, it
should not be continuously used
6. When transporting and maintaining, the winch should be placed in a dry locality. Good dampproof
and antisepticising measures should be applied to all parts of it.
7. When not using the winch for a long-term period, cut off its power supply; it should be kept in a
place which is dry, ventilating, rainproof and without caustic gases; and appropriate antirust disposal
should be applied to it.
11
8. If one of the following cases occurs, reeling drum should be discarded as useless.
8.1 Cracks or broken edge
8.2 The wear abrasion amount of the husk thickness of reeling drum has reached 10% of original
thickness.
9. Parts of brake and clutch should be replaced if one of the following occurs.
9.1 Cracks have occurred on any parts.
9.2 The wear abrasion degree for friction liner of brake arrester has reached 50% of its original thickness.
9.3 The wear abrasion degree of brake wheel has been up to 2～3mm. (Big diameter is opposed to big
value, small diameter to small value)
9.4 Plastic deformations related to spring
9.5 The wear abrasion degree of shaft pin and shaft hole diameter has been up to 5% of its original
diameter.
9.6 Elastic components has been damaged or severely worn down.
10. When one of the following cases occurs, driving wheel should be replaced.
10.1 Cracks or broken gear teeth
10.2 Gear surface rippling has reached 30% of field of conjugate action, and 10% of original gear
thickness.
10.3 The percentage of wear abrasion degree to original gear thickness has reached the following value:
10.3.1 Closed-style gear wheel driving: 10% (grade 1); 20% (other grades)
10.3.2 Open-style gear wheel driving: 30%
VIII、Common Breakdowns and Handling Method
breakdowns
Failures of brake r
Overly large noise
related to brake
causes
1、Overly big clearance
2、oil filth on brake surface.
3、Spring damaged
4、Wear abrasion degree of brake
liner is overly large.
1、Wear abrasion of rubber loop is
overly big.
2、Hydraulic pressure oil in pusher is
overly less.
Bearing overheats
Vibrating winch
motor overheats
1、Lubricating is not good.
2、damaged bearing
Loose connection
1、Using in overload
12
resolution
1、Adjust clearance to value
designated
2、Dismantle and cleanse it
3、Replace damaged spring
4、Replace liner
1、Replace rubble loop
2、Add hydraulic pressure oil.
1、Add lubricating oil or grease.
2、Replace damaged bearing
Tighten connecting bolt.
Using as per rated load
2、Low voltage or default phase
3、Overly big resistance
4、Frequently operating
5、Brake arrester clearance is overly
small.
1、Strict prohibition from overload
After connecting to
power supply,
electromotor cannot be
started up.
2、Too low voltage
3、Due to failure of electrical
apparatus, circuits were cut off.
4、Brake wheel can’t revolve.
5、Cable is too slim and too long.
1、Lubricating is not good;
Installation of foundation anchor is
not flat and steady.
2、Gear wheel was overly worn
down; Clearance is overly big.
3、Gear wheel is damaged.
4、damaged bearing
Leaking oil of
decelerator
When starting,
electromotor doesn’t
revolve but send out
buzz.
motor is unable to stop
or doesn’t stop in
limiting position
1、Oil seal is ineffective.
2、Loose connecting bolt
1、Default of electric source and
electromotor.
2、Contactor is badly connected.
1、Contact welding
2、Malfunction of travel switch
Examine and repair circuits.
Examine and repair the revolving
parts.
According to S3 40% working system
Adjusting clearance
Using as per rated load
Using after voltage
Examine and repair electrical
apparatuses and circuits.
Examine and adjust brake arrester
Replace cable
Filling up lubricating oil and readjust
the contact surface.
Replace gear wheel.
Replace gear wheel.
Replace damaged bearing
Replace seal ring
Tightly screw down the bolt
Examine and repair circuits.
Replace contactor
Examine and repair circuits.
Replace travel switch
Shorten the distance, ensure reeling
and extending deviation
angleα≥0.5°
Big noise related to
decelerator
Stacked steel wire rope
The distance between winch and
pulley is overly far.
Disorderly steel wire
rope leads to winch’s
falling and hitting the
ground.
Lengthen the distance, ensure
The distance between winch and fixed
reeling and extending deviation
pulley is overly short. α＞1.5°
angleα≤1.5°.
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IX、Table for machine lubricating scope
name of
serial
parts
number
lubricated
1 bearing
steel wire
rope
pusher
parts
method of lubrication
lubricated
names of
lubricant or oil
No. Ⅲ lubricating
grease
oil specifically for
steel wire rope
see Table 4
time period
for
lubricating
once each
shift
at due time
once every
three
months
1 revolving-style oil cup
wiping rope with cloth
soaked with oil
adding hydraulic pressure oil
2 1
3
4
1
decelerator 1
Depth of oil: minimum depth
for gear teeth soaking in oil
is about one gear teeth, but
more than is see Table 5
required to regularly add
lubricating oil or grease.
Oil liquid (L-HL hydraulic pressure oil) is recommended.
No.32 hydraulic pressure oil(YT1-320/12、YT1-320/20
choosing No.46 hydraulic pressure oil)
No.22 hydraulic pressure oil
once every
season
Table 4 Choosing hydraulic pressure oil for brake arrester
Temperature of
surrounding medium
+45
oC ~ 0
oC
0
oC ~ -20
oC
standard
GB/T
11118.1-94
GB/T
11118.1-94
Table 5 Speed retarder commonly uses moderate load industrial gear wheel oil
L-CKC220、L-CKC320 in GB5903
Standard of lubricating oil
ISO
GB
AGMA
Environmental temperature
0C
-10～+15
VG150
150
4EP
0～+30
VG320
320
6EP
+10～+50
VG460
460
7EP
X、Spare parts
14
Serial No.
1
2
3
4
5
6
Names
Rubber loop
seal ring
Brake shoe
Carbon brush
bearing
Brake tank
Raw material
polyurethane
Oil resistant rubber
Quantity
20
4
1pair
1set
2
1
Connected parts
shaft coupling
gearbox
brake
motor
Drum support
brake
Spare parts image
Serial No.
1
Names
Rubber loop
Picture for reference
15
2
seal ring
3
Brake shoe
16
4
Carbon brush
5
bearing
17
6
Brake tank
Appendix 1 Cycle, item, method and standard for examination
Examining period
Everyday One
month
Three 1 year
months
√
Label
Items examined Examining
method
Examining
standard
Eyeing Make sure that
the label is
reliably fixed
Make sure that
it conforms to
stipulations in
table 1
Confirming that
it is not loose
√
Steel wire rope’s running
rope deviation angle
Eyeing、Measuring
√
√
Tightening of base frame
and various parts
Electrical
system
Operating
switch
Wiring
18
Examining the
fixed bolt
Check switch’s Confirming that
action actions are
normal
Check the Confirming that
√
connection
fixing
√
Wearing
down of
contact spot
Outside
damage of
cable
Ground line
connecting connections are
line fixed point right and secure
Dismantle and Confirming
examine normal
operation
Eyeing Confirming that
core wire is not
exposed
Confirming
normality，resistance
value≤4W
Confirming
conformity with
regulations
Confirming
conformity with
regulations
Confirming that
it is not
abnormal
Confirming that
it is not loose
√
√ √
Eyeing、Measuring
√
Insulated
resistance
motor Insulated
resistance
Measuring
√
Measuring
√
Damage and Open and
dust pollution check
Brake Installation
tightening
Wearing
down of
brake strap’s
inner liner
Braking
function
Examining the
fixed bolt
√
√
Dismantle and According to
stipulations in
examine、Measuring instruction
manual
Routine
eyeing、Regular
experiment
Confirming
conformity with
regulations
√
√
√
Speed
reducing
device
Wearing
down of gear
wheel
State of
lubricating
Dismantle and Confirming
examine normal
operation
Eyeing Check oil
quantity，
changing in
√
19
time
√
√
√
Steel wire Broken silk
rope thread
Diameter
reduction
Kinking、Winding
Deformation
or erosion
Eyeing
Eyeing、Measuring
Eyeing
Not exceeding
10%
Not exceeding
7% of standard
diameter
Confirming no
kinking and
winding
Confirming
normal
operation
Confirming that
its working is
reliable
Confirming
sufficient
lubrication
Confirming no
disorderly rope
Confirming 3
circles reserved
at least
Confirming no
cracks and
overly obvious
deformation
Confirming no
cracks 、big
deformation
and wear
abrasion
Confirming no
big deformation
and wear
abrasion
Confirm
√
√
Eyeing
√
Fixing the end
Eyeing、Check the
fixed bolt
State of
lubricating
Reeling state
Eyeing
√
√
√
Eyeing
Circle number Eyeing
preserved
Base frame Eyeing
√ √
√ √
Reeling
drum
Damaged
side board
Eyeing
√
Wearing
down of
reeling
drum body
Protective device of
20
Eyeing
√
Eyeing、
moving parts
√
Direction and sound of
return revolving
Check the
fixed bolt
Eyeing、Listening
perfectness
Confirming right
direction of
running rope、normal sound
21
Appendix 2 Electrical device’s principle drawing
1、Controlling principle drawing for Y series electromotor electrical device
2、Controlling principle drawing for YZR weightlifting electromotor electrical device
Falling
backward
Rising
forward
Falling
backward
Rising
forward
Note：Z：brake KT：Cam controller RT：Resistor
22
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