KITO L5 Original instruction manual

OM-L5ZZZZ-KCE-03
Owner’s (Operator’s) Manual
and
Safety Instructions
This equipment must not be installed, operated or
maintained by any person who has not read and
understood all the contents of this manual. Failure to read
and comply with the contents of this manual can result in
serious bodily harm or death, and/or property damage.
Manually Lever Operated
Chain Hoist Model L5
WARNING

Page 2 of 38
Fill in the following product informaition for identification and future reference to avoid
referring to the wrong manual for information or instructions on installation, operation,
inspection, maintenance, or parts.
Model Code:
Serial Number:
Date of Purchase:
Dealer:

Page 3 of 38
Table of Contents
1. IMPORTANT INFORMATION AND WARNINGS ..................................................................... 4
1.1. REGARDING THIS INSTRUCTIONS MANUAL..............................................................................4
1.2. PROHIBITED PRACTICES........................................................................................................4
2. TECHNICAL INFORMATION ................................................................................................... 7
2.1. SPECIFICATIONS....................................................................................................................7
2.2. DIMENSIONS.........................................................................................................................8
3. OPERATION .............................................................................................................................9
3.1. INTRODUCTION......................................................................................................................9
3.2. FREE CHAINING ....................................................................................................................9
3.3. LOAD OPERATION ................................................................................................................. 9
3.4. LOAD SIGNAL (AS OPTION)...................................................................................................10
4. INSPECTION...........................................................................................................................12
4.1. INSPECTION CLASSIFICATION ...............................................................................................12
4.2. DAILY INSPECTION...............................................................................................................13
4.3. FREQUENT INSPECTION.......................................................................................................13
4.4. PERIODIC INSPECTION.........................................................................................................16
5. MAINTENANCE......................................................................................................................21
5.1. GENERAL............................................................................................................................21
5.2. DISASSEMBLY,ASSEMBLY AND ADJUSTMENT.........................................................................21
5.3. TOOLS................................................................................................................................21
5.4. COMPONENTS.....................................................................................................................22
5.5. DISASSEMBLY .....................................................................................................................23
5.6.ASSEMBLY ..........................................................................................................................23
5.7. PREOPERATIONAL CHECKS..................................................................................................28
6. TROUBLESHOOTING............................................................................................................ 29
7. WARRANTY............................................................................................................................34
8. REPAIR PART LIST................................................................................................................35
8.1. UP TO 3TONNES .................................................................................................................35
8.2. EXCLUSIVE PARTS...............................................................................................................36
8.3. OPTIONAL PARTS ................................................................................................................37

Page 4 of 38
1. Important Information and Warnings
1.1. Regarding This Instructions Manual
This manually lever-operated chain hoist model L5 is designed to align a load from horizontal or
slant direction, lift and fasten it by using manual force under normal working conditions, not
intended to transport a person.
The following symbols are used in this manual to identify the degree or level of hazard
seriousness.
This symbol indicates an imminently hazardous situation which, if not avoided, will result in death
or serious injury, and property damage.
This symbol indicates a potentially hazardous situation which, if not avoided, could result in death
or serious injury, and property damage.
This symbol indicates a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury, or property damage.
Even the caution situations may result in serious injury or death depending on conditions.
Therefore, notice should be taken whenever encountering them.
Always keep this manual in a convenient place for operator’s reference.
1.2. Prohibited Practices
1.2.1. General
Improper usage or negligent maintenance of the hoist may result in dangerous situations arising
such as a lifted load dropping. Before installing, operating or maintaining, read and comply with
both this manual for the safety and operation instructions, and notes for all the equipments.
KITO will not be held liable for any malfunction, lack of performance or accident if the product is
being used in conjunction with any other equipment. If the product is to be used for unintended
purposes, please confirm with your dealer in advance.
DANGER
FDDDＤＫ
CAUTION
WARNING
FDDDＤＫ
DANGER
FDDDＤＫ
◼Do NOT use the
hoist to support, lift or
transport people.
◼Do NOT go under a
lifted load or its path,
and do not move the
lifted load over people.
Overload
◼Do NOT lift more
than the rated load.
WARNING
FDDDＤＫ

Page 5 of 38
◼Do NOT modify the product or its accessories.
◼Before moving the load, warn all people in the vicinity.
◼Do NOT operate the hoist unless the contents of this operating manual and the warning
labels are fully understood.
1.2.2. Prior to Operation
◼This manual is intended for the operator who will use the hoist. Prior to operation, all of the
safety and operating instructions must be fully understood.
◼Do NOT use a deformed or scarred hook.
◼Replace components only with KITO approved parts.
◼Make sure that the nameplate is readable.
◼Before operation, make sure to perform all inspections given in 4.1 Inspection
Classification.
◼Use a proper hoist for your purpose, capacity and lift.
◼Ensure to check that the hook latches are NOT deformed or scarred, and are moving
smoothly.
◼Ensure to check that the brake and free chaining functions properly work.
◼Ensure to check that the load chain is well-lubricated.
◼Ensure to avoid welding sparks on the hoist and load chain.
1.2.3. Operation
CAUTION
FDDDＤＫ
CAUTION
FDDDＤＫ
WARNING
FDDDＤＫ
CAUTION
FDDDＤＫ
WARNING
FDDDＤＫ
◼Do NOT use the
hoist with deformed or
scarred load chain.
◼Do NOT use the
load chain as a sling.
◼Do NOT use the
hoist as a fulcrum.
◼Do NOT support a
load on the tip of the
hook.
◼Do NOT impede the
chain on any surface
e.g. a steel plate.
◼Do NOT perform
welding or cutting
operation on the load
being suspended.

Page 6 of 38
◼Do NOT swing a lifted load.
◼Do NOT use the load chain as an earth for welding.
◼Do NOT lift excessively until the bottom yoke comes into contact with the hoist body.
◼Do NOT lower excessively until the chain stopper comes into contact with the hoist body.
◼Do NOT use a damaged hoist or one having abnormal sounds.
◼Do NOT use a hoist with the loose lever grip.
◼Do NOT leave a lifted load unattended for a long time.
◼In lowering mode, do NOT pull the no-load-side chain which could cause a hazardous
situation arising the lever revolving.
◼Ensure to place a load properly on the middle of the hook saddle.
◼Before lifting, ensure to eliminate load chain slack to avoid a shock load.
1.2.4. After operation
◼After operating, ensure to put a load down securely to avoid dropping it.
◼Do NOT drag or throw the hoist when carrying it.
1.2.5. Inspection and Maintenance
◼Ensure that competent people periodically conduct inspections and maintenance
corresponding to 4Inspection and 0 Maintenance otherwise please confirm with your
dealer.
◼Do NOT extend or weld the load chain.
1.2.6. Others
◼In case of use in special environments such as salt water, seawater, acidic, alkaline or
explosive atmospheres, confirm with your dealer in advance.
◼Do NOT use the hoist which is out of order or under repair.
◼Do NOT use the hoist with warning labels or tags missing.
CAUTION
FDDDＤＫ
WARNING
FDDDＤＫ
CAUTION
FDDDＤＫ
WARNING
FDDDＤＫ
CAUTION
FDDDＤＫ
WARNING
FDDDＤＫ
CAUTION
FDDDＤＫ
◼Do NOT use the
hoist by stepping on
the lever.
◼Do NOT extend the
lever by attaching a
pipe to it.

Page 7 of 38
2. Technical Information
2.1. Specifications
2.1.1. Schematics
2.1.2. Operating Conditions and Environment
Temperature Range: -40° to +60°C (-40° to +140°F)
Humidity: 100% or less, this is not an underwater device.
Material: No special materials such as sparkless and asbestos.
Table 2-1 Hoist Specifications
Capacity
(tonnes)
Product
Code
Standard
Lift
(m)
Pull to
Lift
Rated
Load
(N)(kgf)
Load
Chain
Diameter
x Pitch
(mm)
Chain
Fall
Lines
Test
Load
(tonnes)
Net
Weight
(kg)
Weight for
Additional
One Meter
of Lift
(kg)
3/4
LB008
1.5
265(27)
5.6×15.7
1
1.1
5.7
0.7
1 1/2
LB015
1.5
314(32)
7.1×19.9
1
2.3
8.0
1.1
2 1/2
LB025
1.5
363(37)
8.8×24.6
1
3.8
11.2
1.7
3
LB030
1.5
343(35)
10×28.0
1
4.5
15.0
2.3
6
LB060
1.5
353(36)
2
7.5
26
4.7
9
LB090
1.5
382(39)
3
11.3
40
7.0
Top hook
Latch
Chain pin
Connection yoke
Bottom hook
Free chain knob
Select lever
Nameplate
Anchor screw
Lever
Load chain
Chain stopper link

Page 8 of 38
2.2. Dimensions
Up to 3 tonnes 6 tonnes
9 tonnes
Table 2-2 Hoist Dimensions
Units: mm
Hoist
Code
a
b
C
D
e
g
s
t
LB008
114
119
280
245
97
23.5
35.5
14
LB015
159
126
335
265
100
32
42.5
19
LB025
173
150
375
265
102
36.5
47
21
LB030
190
159
395
415
112
39
50
24.5
LB060
190
217
540
415
112
50
60
34
LB090
190
304
680
415
112
72.5
85
41.5
189.6000
1056.6278
112.0000
415.0000
303.9029
72.6446
e
g
a
tS
C
b
D
b
e
g
a
tS
CD
189.6000
906.0897
112.0000
415.0000
216.6997
50.0317
e
g
a
tS
C
b
D

Page 9 of 38
3. Operation
3.1. Introduction
Operating a heavy load may result in hazardous situations. Before operating, read and
comply with all of the information in this clause and 1.2 Prohibited Practices.
Before operating the hoist, secure the workplace as follows:
- Ensure to arrange the workplace to work smoothly.
- Ensure to keep a good view to monitor the operation, otherwise arrange watch
personnel.
3.2. Free Chaining
Do NOT operate the hoist in free chaining mode under a load.
3.2.1. Features
- Free chaining can freely feed the load chain as the brake is released under no load
situations.
- Pulling the free chain knob moves the internal spring to release the mechanical
brake and to pull the load chain in either direction to its needed length.
3.2.2. How to Operate 1. Set the select lever to the neutral (‘N’) position.
2. Pull the free chain knob upwards.
3. In this mode, the load chain can be pulled through the hoist
to its required length.
Do NOT pull the load chain suddenly in
free chaining mode.
- Excessive pulling may make a brake and can not feed the
chain.
- In this case, reset the hoist (see 4), make some lowering
operations, and then start over.
4. To reset the hoist for load operation, turn the free chain knob
clockwise with the load-side chain pulled lightly. The knob will
come into contact again to operate the hoist with the lever.
3.3. Load Operation
3.3.1. Features
Operating the lever with the select lever set to the lifting (‘UP’) or the lowering (‘DN’) position, the
hoist performs as follows:
- In lifting mode, the tightened mechanical brake rotates as one and supports a load on the pawls
when the lever stops.
- In lowering mode, lever operation un-tightens the mechanical brake and lowers the load chain,
and when the lever stops, the mechanical brake is tightened and supports the load instantly.
- In lifting and lowering, braking always acts.
Free chain knob
Select lever
CAUTION
FDDDＤＫ
DANGER
FDDDＤＫ

Page 10 of 38
3.3.2. How to Operate
Do NOT operate the free chain knob in lifting or lowering.
Before operating, make sure that the hoist is out of the free chaining mode
and the select lever position meets your operation demands.
The following table shows select lever position and lever operation for lifting and lowering.
Table 3-1 Hoist & Lever Operation
Hoist Operation
Select Lever
Lever Operation
Lifting
UP
Clockwise
Lowering
DN
Counterclockwise
Under no load conditions, in the case that the load chain does not lower
against your lowering operation, operate the lever with the load-side chain pulled lightly. (This is a
standard aspect.)
3.4. Load Signal (as option)
This load signal is designed as an overload detecting device to warn an operator that an excessive
load has been applied which could cause a hazardous situation.
◼Disregarding the overload sign could cause bodily harm or damage to the hoist. Do NOT lift an
overload. Warn all the people in the vicinity and remove the causes.
◼Do NOT leave dust or foreign objects in the load signal.
◼Disassembling the hoist or changing the signal setting will invalidate your product warranty.
Contact your dealer for disassembly or repair.
◼Excessive impact on the lever may result in a malfunctioning signal or damage to the
components.
◼Using the hoist recklessly may cause the load signal to work improperly.
3.4.1. Features
-Lifting pull is transmitted to the lever through the spring inside the lever.
-A pull over the designed (in response to 100 to 120 % of the rated
capacity) compresses the spring and bends the lever.
-Then the color of the signal window on the lever changes to warn the
operator of an overload.
-The signal colors are identified as shown in the following table.
Table 3-2 Signal Warning
DANGER
FDDDＤＫ
CAUTION
FDDDＤＫ
CAUTION
FDDDＤＫ
DANGER
FDDDＤＫ
CAUTION
FDDDＤＫ
Signal Color
Load Status
Instructions
Green
Safe load
Continue operation
Red
Overload
Do not continue operation
Lever Grip
Bending
Spring
Lever
Signal Window

Page 11 of 38
3.4.2. How to Operate
1. Operate the hoist by holding the lever grip in the middle.
2. The following events of the load signal warn you of an overload.
- The lever grip is bent.
- The lever clicks.
- The signal window changes from green to red.
3. Stop lifting and lower immediately when an overload is detected.
4. Reset the grip into its straight position (back in place) before operation commences.

Page 12 of 38
4. Inspection
To maintain continuous and satisfactory operation, a regular inspection procedure must
be initiated to replace worn or damaged parts before they become unsafe.
4.1. Inspection Classification
Inspection intervals must be determined by the individual application and are based on
the type of service to which the hoist will be subjected and the degree of exposure to
wear, deterioration or malfunction of the critical components.
The type of service to which the hoist is subjected can be classified below.
◼Normal Service –service that involves operation with randomly distributed loads
within the rated load limit, or uniform loads less that 65% of rated load for not
more than 15% of the time.
◼Heavy Service –service that involves operation within the rated load limit which
exceeds normal service.
◼Severe Service –service that involves normal or heavy service with abnormal
operating conditions.
The three general classifications are herein designated as DAILY, FREQUENT and
PERIODIC, with respective intervals between inspections as defined below.
DAILY Inspection - visual examinations by the operator or other designated people
before daily operation
FREQUENT Inspection –visual examinations by the operator or other designated
people with intervals per the following criteria:
◼Normal service –monthly
◼Heavy service –weekly to monthly
◼Severe service –daily to weekly
Records are not required.
PERIODIC Inspection –visual inspection by a designated people with intervals per
the following criteria:
◼Normal service –yearly
◼Heavy service –semiannually –6 months
◼Severe service –quarterly –3 months
Records are to be kept for continuing evaluation of the condition of the hoist.

Page 13 of 38
4.2. Daily Inspection
Table 4-1 Daily Inspection Methods and Criteria
Item
Method
Criteria
Action
Nameplate,
Warning Tag
Visual
Should be affixed properly and
readable.
Replace.
Function –
Lifting
Set the select lever to ‘UP’and
make lifting operation with the
load-side chain pulled slightly.
Moving the lever forwards and
backwards should make clicking
sounds.
Repair or replace as
necessary.
Function –
Lowering
Set the select lever to ‘DN’and
make lowering operation with
the load-side chain pulled
slightly.
Moving the lever only backwards,
not forwards, should make
clicking sounds.
Repair or replace as
necessary.
Function –
Free Chaining
Set the select lever to ‘N’and
pull the free chain knob upwards
into free chaining mode to adjust
the chain length.
- The chain should be pulled
smoothly.
- The free chain knob should be
easily pulled or reset.
Repair or replace as
necessary.
Hooks –
Condition
Visual, Function
- Should be not deformed.
- Should turn smoothly.
Replace
Hooks –
Latches
Visual
Should be not deformed or
scarred.
Replace
Load Chain
Visual
- Should be free of severe rust.
- Should be coated with lubricant.
- Should not be deformed or
scarred.
Replace
Clean/Lubricate
Replace
Others
Visual
- Nuts, split pins, grip or screws
should not be loose or missing.
- Hoist should not be scarred or
damaged.
- Chain stopper link at no-load
side should not be missing or
deformed.
- Bottom hook on multiple chain
fall line models should not be
capsized.
Replace.
Correct all chain
irregularities as
shown in the following
picture.
Twisted Chain
Capsized Hook and Chain
Double Fall Models
4.3. Frequent Inspection
Evaluation and resolution of the results of the frequent inspections shall be made by a designated
person so that the hoist is maintained in safe working condition.
Do NOT use components beyond the stated criteria or KITO-unauthorized
parts.
WARNING
FDDDＤＫ

Page 14 of 38
In addition to the daily inspections, perform the following checks.
Table 4-2 Frequent Inspection Methods and Criteria
Item
Method
Criteria
Action
Put the hoist under a light load and check the following items of “Function - ……”
Function –
Lifting
Set the select lever to ‘UP’and
lift the load operation 20 to 30
cm.
Moving the lever forwards and
backwards should make clicking
sounds.
Repair or replace as
necessary.
Function –
Lowering
Set the select lever to ‘DN’and
lower the load operation 20 to
30 cm.
Moving the lever only backwards,
not forwards, should make clicking
sounds.
Repair or replace as
necessary.
Function –
Abnormal Sounds
Auditory
Should have no damped clicking or
irregular sounds.
Repair or replace as
necessary.
Function –
Pull
Function
Should not be extremely heavy.
Repair or replace as
necessary.
Function –
Braking
Function
Should not slip.
Repair or replace as
necessary.
Hooks –
Stretch
Measure
a
b
c
Record the following sizes, a, b and
c at the time of purchase.
Replace
Hooks –
Abrasion
*These values are nominal since the dimensions are not controlled
to a tolerance. The measurements at the time of purchase become
the reference ones. Subsequent measurements are compared to
these references to make determinations about hook
deformation/strectch.
Replace
Hooks –
Deformation, Scars
Visual
- Should not be significantly twisted
or deformed.
- The shank portions of the hook
should be evenly worn.
- Should have no deep scars.
- Should have no loose or missing
rivets, bolts or nuts.
- Should have no welding sparks.
Replace
Hooks –
Swivel
Visual, Function
The hook should rotate.
Replace
Measured when new
(mm)
Discard limit
a:
b:
c:
Over the measured
5 % or more reduction
5 % or more reduction
Capacity
a* (mm)
b (mm)
c(mm)
(tonnes)
Nominal
Standard
Discard
Standard
Discard
3/4
44
14.0
13.3
19.6
18.6
1 1/2
55
19.0
18.1
25.7
24.4
2 1/2
63
21.0
20.0
29.0
27.6
3
67
24.5
23.3
31.0
29.5
6
90
34.0
32.3
41.0
39.0
9
111
41.5
39.4
52.0
49.4

Page 15 of 38
Item
Method
Criteria
Action
Hooks –
Hook Latches
Visual, Function
- Should be held in place on the tip
of the hook.
- Should move smoothly.
Do NOT use
the hook with the latch missing.
Replace the hook
latch
Hooks –
Idle Sheave
(bottom hook on
double fall hoist)
Visual, Function
Make sure to
avoid having your fingers caught.
Should rotate smoothly.
(If not, idle sheave or axle may be
deformed or worn.)
Replace the idle
sheave and axle.
Hooks –
Idle Sheave
Visual
Pockets of idle sheave should be
free of wear or scars.
Replace the idle
sheave and axle.
Load Chain –
Wear
Measure
L - 5 link pitch length
d
Notice: If wear on the load chain is found, make sure to check that
on the load sheave.
Replace
Load Chain –
Rust
Visual
Should be free of significant rust.
Make sure to
lubricate the load chain frequently.
Replace
Load Chain –
Deformation, Scars
Visual
- Should be free of deformation
(such as twist.)
- Should be free of deep scars or
dents.
Replace
Load Chain –
Welding Sparks
Visual
Should be free of welding sparks.
Make sure to
avoid welding sparks on the hoist.
Replace
WARNING
FDDDＤＫ
WARNING
FDDDＤＫ
WARNING
FDDDＤＫ
Capacity
(tonnes)
L dimension
(mm)
d dimension
(mm)
Standard
Discard
Standard
Discard
3/4
79.0
81.3
5.6
5.1
1 1/2
100.0
102.9
7.1
6.4
2 1/2
124.0
127.6
8.8
7.9
3, 6, 9
141.0
145.1
10.0
9.0
WARNING
FDDDＤＫ

Page 16 of 38
4.4. Periodic Inspection
In addition to the frequent inspections, perform the following checks.
Table 4-3 Periodic Inspection Methods and Criteria
Item
Method
Criteria
Action
Chain Pin –
Deformation
Visual, Measure
d
- Significantly deformed pin should
be discarded.
- Should be free of scars or
deformation on the thread.
Replace.
Chain Pin –
Wear
Replace.
Chain Pin –
Rust
Visual
Should be free of significant rust.
Replace.
Yoke –
Hole Deformation
Measure
Check the diameters of the top
pin and chain pin hole.
d
Replace the hook
set.
Braking System –
Components
Braking System –
Friction Surface
Visual
- Should free of scars or gouged
flaws on the braking surface of the
Friction Disc, Friction Plate, Ratchet
Disc, Female Thread.
- The braking surface of the above
-mentioned parts should not be
excessively worn with the tool marks
erased and surface lustered.
Replace
Braking System –
Friction Plate
Measure
Outer Inner
- Should have uniform thickness.
The plate with the outer thinner than
the inner should be discarded.
- Should be free of scars or cracks.
Replace.
Capacity
(tonnes)
d dimension (mm)
Standard
Discard
3/4
6.8
6.5
1 1/2
8.7
8.3
2 1/2
10.8
10.3
3, 6, 9
12.1
11.5
Capacity
(tonnes)
Diameter (mm) for
Chain pin
Top pin
Standard
Discard
Standar
d
Discard
3/4
7.1
7.6
12.2
12.7
1 1/2
8.9
9.4
12.2
12.7
2 1/2
11.0
11.5
14.2
14.7
3
12.3
12.8
16.2
16.7
6, 9
12.3
12.8
16.4
16.9
Capacity
(tonnes)
Thickness of Friction Plate (mm)
Standard
Discard
All
3.5
3.0

Page 17 of 38
Item
Method
Criteria
Action
Braking System –
Bushing Wear
Measure
A
Should have uniform thickness of A
dimension.
Replace.
Braking System –
Bushing Lubrication
Visual
Heat with a match flame.
Should be so lubricated that
lubricant oozes off the surface.
Even for
repair or assembly, soak the bushing
in turbine oil for a day before reuse.
Soak the bushing in
turbine oil for a day.
Braking System –
Ratchet Disc
Measure
D
Replace
Braking System –
Pawl
Visual
Wear
As shown in the left picture, the side
of the pawl should not be worn.
Replace
Braking System –
Pawl Spring
Visual
Should not be deformed or scarred.
Replace
Braking System –
Female thread
Visual
The cogs should be free of
significant deformations.
Replace
Braking System –
Rust
Visual
All parts should be free of rust.
Replace
Lifting system–
Components
WARNING
FDDDＤＫ
Capacity
(tonnes)
A dimension (mm)
Standard
Discard
All
4.0
3.0
Capacity
(tonnes)
D dimension (mm)
Standard
Discard
3/4
64
61
1 1/2
2 1/2
3, 6, 9
74
71

Page 18 of 38
Item
Method
Criteria
Action
Lifting system –
Load Sheave
Visual
Should be free of wear in the
pockets or scars on the rising parts.
Replace
Lifting system –
Cogs
Visual
Should not be chipped, unevenly
worn or scarred.
Replace
Lifting system –
Pinion
Visual
A deformed pinion should be
discarded.
Replace
Lifting system –
Lever
Visual
Should be free of loose caulking,
bends or cracks.
Replace
Lifting system –
Select Pawl
Visual
Wear
As shown in the left picture, the
sides of the pawl should not be
worn.
Replace
Lifting system –
Spring Shaft
Visual
Should be free of deformation (such
as bend.)
Replace
Lifting system –
Select-pawl Spring
Measure
L
Replace
Lifting system
–Brake Spring
Measure
A
L
Replace
Lifting system
–Free Chain Spring
Measure
A
L
Replace.
Body –
Components
Figure 4-1 Body Components
Capacity
(tonnes)
L dimension
(mm) Minimum
3/4
37
1 1/2
2 1/2
3, 6, 9
42
Capacity
(tonnes)
L dimension
(mm)
Minimum
A angle
(°: degree)
Standard
Discard
3/4
30
30
45
1 1/2
2 1/2
3, 6, 9
30
25
40
Capacity
(tonnes)
L dimension
(mm)
A angle
(°: degree)
Standard
Discard
Standard
Discard
3/4
66
59
180
165
1 1/2
2 1/2
3, 6, 9
71
64
180
165

Page 19 of 38
Item
Method
Criteria
Action
Body –
Frame A, B
Stay Bolts
Top Pin Hole
Pawl Shafts
Visual
- Should be free of major
deformation or significant scars.
- Should be free of loose caulking.
- Should be free of cracks on the
welding parts.
- The maximum of a, b as shown in
Figure 4-1 should be 0.5 mm.
- The bearing holes should not be
deformed.
Replace.
Body –
Gear Case
Visual
- Should be free of major
deformation or significant scars.
- The bearing holes for the gear #2
and the pinion should not be
deformed.
Replace.
Body –
Top Pin
Measure
d
Should be free of significant
deformation.
Replace.
Others –
Components
Others –
Stripper
Visual
Should be free of cracks or
deformation on the tip.
Replace.
Others –
Chain Stopper Link
Visual
Should not be open or significantly
deformed.
Replace.
Others –
Chain Guide
Visual
Should be free of damage or
significant deformation.
Replace.
Capacity
(tonnes)
d dimension
(mm)
Standard
Discard
3/4
12
11.4
1 1/2
2 1/2
14
13.3
3, 6, 9
16
15.2

Page 20 of 38
Item
Method
Criteria
Action
Preoperational
Checks
Before reuse, reassemble properly the hoist in accordance with 0 Maintenance in this manual
and perform the following the checks.
Checks under No
Load –Lifting
Function, Auditory
Set the select lever to ‘UP’and
make lifting operation with the
load-side chain pulled slightly.
- The lever should be operated
smoothly.
- Moving the lever forwards and
backwards should make clicking
sounds.
Repair or replace as
necessary.
Checks under No
Load –Lowering
Function, Auditory
Set the select lever to ‘DN’and
make lowering operation with
the load-side chain pulled
slightly.
- The lever should be operated
smoothly.
- Moving the lever only backwards,
not forwards, should make clicking
sounds.
Repair or replace as
necessary.
Checks under No
Load –Free
Chaining
Function
Set the select lever to ‘N’and
pull the free chain knob upwards
into free chaining mode to adjust
the chain length.
- The chain should be pulled
smoothly.
- The free chain knob should be
easily pulled or reset.
Repair or replace as
necessary.
Checks under the
rated load
Function
Lift and lower the rated load
from 20 to 30 cm. Check the
functions in accordance with
“Function - ……” of 4.3 Frequent
Inspection.
See “Function - ……” of 4.3
Frequent Inspection.
See “Function - ……”
of 4.3 Frequent
Inspection.