Yale CPA 30-6, CPA 20-8, CPA 40-4, CPA 50-3, CPA 60-3 Operating And Service Instructions

1

Model CPA

Operating and Service Instructions,

Spare Parts List

Issue January 2002

2

Weight with std. height 3m**Model Lifting

ca

p

acit

y

in kg/

chain fall

Lifting speed

with rated load*

m/min

Lifting speed
without load*

m/min

Lowering speed

with rated load *

m/min

Motor

rating

kW

Hook

design

kg

Push

trolley

kg

Geared

trolley

kg

Motor
trolley

kg

CPA 20-8 2000/1 6,4 8,6 9,5 2,6 121 184 188 199

CPA 30-6 3000/1 5,2 8,6 11,3 3,2 121 184 188 199

CPA 40-4 4000/2 3,2 4,4 4,8 2,6 140 202 206 218

CPA 50-3 5000/2 2,9 4,4 5,2 3,0 140 202 206 218

CPA 60-3 6000/2 2,6 4,4 5,6 3,2 140 202 206 218

*Value at 6 bar (flow pressure) Air consumption with rated load 4,7 m3/min **Other lifting heights available

Motor trolley

Lifting capacity

kg

Flange

width

mm

Size Curve

radius

min.

m

Travel

speed

m/min

Motor ratin

g

kW

2000 - 6000 98 – 180 A 1,8 18 0,55

2000 - 6000 180 - 300 B 1,8 18 0,55

Fig. 1

Trolley

Pendant control

Trolley motor

Air filter

Chain hoist

Buffer

Chain stop

Load chain 11 x 31

Buffer

Lower block

Safety latch

Load hook

Technical Data CPA

Technical Data Motor Trolley

Controls

Air pressure hose

3

1. GENERAL INFORMATION

Attention: All users must read these operating instructions care-
fully prior to the initial operation. These instructions are intended
to acquaint the user with the hoist/trolley and enable him to use it
to the full extent of its intended capabilities
The operating instructions contain important information on how
to handle the hoist/trolley in a safe, correct and economic way.
Acting in accordance with these instructions helps to avoid dan­gers, reduce repair costs and down time and to increase the reli­ability and lifetime of the hoist/trolley. Anyone involved in doing
any of the following work with the hoist/trolley must read the oper­ating instructions and act accordingly:

operation, including preparation, trouble shooting during opera­tion and cleaning maintenance, inspection, repair
transport

Apart from the operating instructions and the accident prevention
act valid for the respective country and area where the hoist/trol­ley is used, also the commonly accepted regulations for safe and
professional work must be adhered to.

Every unit leaving the factory is furnished with a test certificate
showing the serial number of the hoist.

The continuous sound level at the place of work is equal to 75 dB.
The measurement was taken at a distance of 2.2 m from the hoist
in 1 position in accordance with DIN 45635 precision class 2.

2 OPERATING INSTRUCTIONS

2.1 CORRECT OPERATION

Capacity / max. safe working load

The Yale pneumatic chain hoist CPA is designed to lift and lower
loads up to the rated capacity. The lifting capacity indicated on the
hoist is the maximum safe working load which must not be ex­ceeded.

Danger zones:

Do not lift or transport loads while
personnel are in the danger zone.

Do not allow personnel to pass
under a suspended load.

After lifting or tensioning, a load
must not be left unattended for a
longer period of time.

Start moving the load only after it
has been attached correctly and
all personnel are clear of the
danger zone.

Fig. 2

Attaching the hoist

The operator must ensure that the hoist is attached in a manner
that does not expose himself or other personnel to danger by the
hoist, chain(s) or the load.

INDEX PAGE

1. General information 3

2. Operating instructions 3

2.1 Correct operation 3

Capacity / max. safe working load 3
Danger zones 3
Attaching the hoist 3
Temperature range 4
Regulations 4
Maintenance/repair 4

2.2 Incorrect operation 4

2.3 Commissioning 4

inspection before initial operation 4
Inspection before starting work 4
Inspection of load chain 4
Inspection of chain stop 4
Inspection of chain reeving 4
Inspection of suspension and load hooks 5
Attaching the load 5
Inspecting the traverse (for trolleys) 5
Check adjustment of trolley width 5

3. Assembly 5

3.1 Inspection before assembly 5

3.2 Pneumatic chain hoist with hook suspension
(Standard design) 5

3.3 Pneumatic chain hoist with trolley 5

Fitting the trolley 6

3.4 Air pressure connections 6

4. Functional check after assembly 6

5. Operation 7

Installation, service, operation 7
Traversing the trolley 7
Attaching the load 7
Lifting the load 7
Emergency stop 7

6. Service 8

6.1 Daily checks 8

6.2 Regular inspections, service, testing 8

6.3 Load chain 9

Lubricating the load chain 9
Inspecting the load chain for wear 9
Replace the load chain 9

Single fall design 9
Two-fall design 9

6.4 Load and suspension hooks 10

6.5 Trolleys 10

6.6 Pneumatic hoists in general 10

6.7 Overload protection device 10

6.8 Gearbox 10

Checkoil level

Oil change 10
Disassemble and reassemble the gearbox 11

6.9 Air motor 12

Motor 12
Disassemble and reassemble the motor 12-13

4

Temperature range:

The hoists can be operated in ambient temperatures between

-10 OC and +50 OC.
Consult the manufacturer in case of extreme working conditions.
Note: At ambient temperatures below 0 OC check the brake is not
frozen.

Regulations

The accident prevention act and/or safety regulations of the re­spective country for using manual hoists must be strictly adhered
to. In Germany these are VGB8, VBG9, VBG9a, ZHI/25, ZHI/27.

Maintenance / Repair:

In order to ensure correct operation not only the operating instruc­tions, but also the conditions for inspection and maintenance must
be complied with. If defects are found stop using the hoist imme­diately.
Attention: Before starting work on pneumatic components switch
OFF the main air supply and secure it against unintentionally be­ing switched back on.

2.2 INCORRECT OPERATION

• Do not exceed the rated capacity of the hoist.

• Do not use the hoist for the transportation of people (fig. 3)

• Welding on hook and load chain is strictly forbidden. The load
chain must never be used as a ground connection during welding
(fig. 4).
Avoid side pull, i. e. side load on either housing or bottom block
(fig. 5).

• Lift/ pull/ tension only when load chain forms a straight line be­tween both hooks.

• The load chain must not be used for lashing purposes (sling
chain) (fig. 6).

• Do not knot or shorten the load chain by using bolts / screws /
screwdrivers or other devices (fig. 7). Do not repair load chains
installed in the hoist.

• Do not remove the safety latch from the suspension or load
hooks (fig. 8).

• Do not use the chain stop as an operational limit device
(see fig. 1 - chain stop)

• Do not throw the hoist down. Always place it properly on the
ground.

2.3 COMMISSIONING
Inspection before initial operation

Each hoist must be inspected prior to initial operation by a
competent person and any faults rectified. The inspection is
visual and functional and shall establish that the hoist is safe
and has not been damaged by incorrect transport or storage.
Inspections should be made by a representative of the manu­facturer or the supplier although the company can assign its
own suitably trained personnel.
Inspections are instigated by the user.

Inspection before starting work:

Before starting work inspect the hoist, chain(s) and all load
bearing constructions every time for visual defects. Further­more test the brake and that the load and hoist are correctly
attached by carrying out a short work cycle of lifting/pulling or
tensioning and releasing. The selection and calculation of a
suitable suspension point for the hoist is the responsibility of
the user.

Inspection of load chain:

Inspect the load chain for sufficient lubrication and visually
check for external defects, deformations, superficial cracks,
wear or signs of corrosion.

Inspection of chain stop:

The chain stop must be connected to the free (idle) chain
strand ( see fig. 1 - chain stop ).

Inspection of chain reeving:

All units equipped with two or more chain strands should be
inspected prior to initial operation for twisted or kinked chains.
The chains of two strand hoists may be twisted if the bottom
block was rolled over (see fig. 9).

Inspection of suspension and load hooks

Inspect suspension and load hooks for deformations,
damage, cracks, wear or signs of corrosion.

Fig. 4

Fig. 3

Fig. 5 Fig. 6

Fig. 8Fig. 7

5

3.3 PNEUMATIC CHAIN HOIST WITH TROLLEY

The trolleys are supplied pre-assembled for beam widths A or
B (see table 1). This is shown on the nameplate. Before instal­lation ensure that the trolley width is correct for the intended
carrying beam.

B

b

No. Description

1 Traverse
2 Nut
3 Washer
4 Centre traverse

Beam width Flange width

[mm]

Flange

thickness

[mm]

from to max.

A

98 180 27

B

180 300 27

Roll pins

bAA

B

Attaching the load

The load must always be seated in the saddle of the hook.
Never attach the load to the tip of the load hook. This
also applies to the suspension hook (fig. 10).

Inspecting the traverse (for trolleys)

Inspect the traverse for correct assembly and visually
check for external defects, deformations, superficial
cracks, wear or signs of corrosion. In particular check
that the roll pins in the centre traverse have bee fitted
correctly (fig. 12)

Check adjustment of trolley width

On chain hoists without suspension hook (CPA-VTP/G/
E) check that the clearance between the trolley wheel
flange and the beam outer edge is equal on both sides
and within the tolerances given (see page 6). Enlarging
the clearances, e.g. to enable the trolley to negotiate
tighter curves, is forbidden.
.

3 ASSEMBLY

3.1 Inspection before assembly

Check for transport damage
Check for completeness
Check that the lifting capacity of hoist and load hook
match

3.2 Pneumatic chain hoist with hook suspension

(Standard design)
The standard Yale pneumatic chain hoist is fitted with a
suspension hook.
The suspension hook is connected to the hoist with two
suspension pins. Independent of how the hoist is reeved
it must always hang vertically under the suspension hook.
In single-fall operation the suspension hook is to be in­stalled centred on the marking 1/1, for dual-fall opera­tion centred on the marking 2/1 (see fig. 11).
Attention: Secure the two suspension pins with the lock­ing plate after assembly.
The selection and calculation of a suitable suspension
point is the responsibility of the user and must be adequate to
support the hoist while it is being operated at its maximal lift­ing capacity.

Fig. 12

1

2

3

4

5

6

7

8

5

3

2

8

Fig. 10

Fig. 9

2/1

1/1

Fig. 11

Fitting the trolley (see fig. 12)

1.) Unscrew the locking nuts (pos. 8) and securing nuts
(pos. 2) from the traverses (pos. 1) and remove the side plates
(pos. 6).

5 Round nut
6 Sideplate
7 Roller
8 Locking nut

6

2.) Measure the flange width ”b” of the beam.

3.) Adjust the measurement “B” between the shoulders of the
round nuts (pos. 5) on the threaded traverses (pos. 1).

Ensure that the 4 bores in the round nuts face towards the
outside. Adjust the measurement “B” to equal the measure­ment “b” plus 4 mm. The measurement “A” must be 2 mm on
each side and the suspension traverse must be centred be­tween the shoulders of the round nuts.

4.) Replace one side plate (pos. 6).

Replace one side plate ensuring that the roll pins in the side
plates engage into the bores in the round nuts. To achieve this
it may be necessary to rotate the round nuts slightly.

5.) Replace the washers (pos. 3) and tighten the securing nuts
(pos. 2). Screw on the locknuts (pos. 8) fingertight and tighten
a further 1/4 to 1/2 turn.

Attention: The locknuts must always be fitted.

6.) Loosely replace second side plate (pos. 6) on the traverse
(pos. 1):

The washers (pos. 3), security nuts (pos. 2) and locknuts (pos.

8) can be fitted loosely.

7.) Raise the complete pre-assembled trolley to the carrying
beam.

8.) Engage the second side plate ensuring that the roll pins in
the sideplate engage into the bores in the round nuts To achieve
this it may be necessary to rotate the round nuts slightly.

9.) Tighten the security nuts (pos. 2) on the second sideplate.
Tighten the locknuts (pos. 8) fingertight and then a further 1/4
to 1/2 turn.

Attention: The locknuts must always be fitted.

10.) By traversing the trolley check following:

That a clearance of 2 mm on each side between the trol­ley wheel flanges and beam edge is maintained.

The centre traverse is centred below the beam.

That all 4 locknuts are fitted and secured.

11.) Model CPA-VTG only

To fit the handchain, position the slot on the outer edge of the
hand chain wheel below the chain guide. Place one link of the
hand chain vertically into the slot and turn the hand wheel until
the link has passed the chain guides on both sides.

Attention: Do not twist the hand chain when fitting.

Pulling the hand chain moves geared trolleys

3.4 AIR PRESSURE CONNECTIONS

Attention
The brake opening pressure for the disc brake is: min.

2.6 bar. The ”hold open” pressure of 3 bar must be main­tained, to ensure that the brake lining does not constantly
slip on the pressure plate.

The operating pressure is 4 - 6 bar.

The compressed air must be clean and enriched with oil to
guarantee adequate lubrication. We, therefore recommend the
use of an oiler that works on the ram-air principle with an ad­justable jet. 1 cm

3

of oil amounts to 25 – 30 drops, 2 – 5 drops
are required for every m3 of air used under normal conditions
(see following table).

In any case a lubricator unit comprising of a filter and an oiler
with a pressure regulator in-between (regulator independent
of supply pressure, adjustable and with pressure gauge). When
choosing a unit consider the rate of flow and ensure it is not
fitted more than 5 m away from the hoist.
The lubricant can be replenished in service without discon­necting the air supply.
For the oiler we recommend a resin and acid free lubricating
oil (SAE 5W – SAE 10W), as thicker oils tend to clog the vanes
and reduce the performance of the motor.

The air hose should have a diameter of at least 19 mm. The
connection is R1”.

The connections on the control pendant must not be ex­changed.

7

Traversing the trolley

Hand trolleys: Pull on the load chain.
Attention: never pull on the air hoses
Geared trolleys: By operating the hand chain
Motor trolleys: By operating the "left" button or "right" button
on the LH side of the pendant control.
Consider the braking distance of the trolley. Do not use the
beam end stops as operational limit devices.

Attaching the load

Attach the load to the hoist using only approved and certified
slings / lifting gear. The load must always be seated in the
saddle of the hook. Never attach the load to the tip of the
hook. Never remove the safety latch from suspension or load
hooks.

Lifting the load

The load is lifting by depressing the "up" button, it is lowered
by depressing the "down" button on the RH side of the pen­dant control. Do not use the chain stop as an operational limit
device (see fig. 1).

Emergency stop

All movement can be immediately halted by depressing the
red, mushroom shaped button on the pendent control.
Attention: The hoist is still filled with air. To release the
emergency stop, pull the button out again.

4. FUNCTIONAL CHECK AFTER ASSEMBLY

Prior to operating the hoist, grease the trolley pinions (manual
and motor trolleys) and lubricate the load chain when it is not
under load (see page 8).

Before the hoist is put into regular service, following inspec­tions must be made:

• Are all screwed connections on the hoist and trolley tight and
are all locking devices in place and secure?

• Are the end stops on the trolley runway in place and secure?

• Is the hoist correctly reeved?

• Is the chain stop correctly fitted to the loose end of the load
chain (see fig. 1).

• All units equipped with two or more chain strands should be
inspected before initial operation for twisted or kinked chains.
The chains of two fall hoists may become twisted if the bottom
block is rolled over.

• Perform an operating cycle without load. The chain should
move in a steady, smooth way. Check the function of the over­load device (max. 5 sec.) by raising the bottom block against
the hoist body.

• Check the brake function when lifting and lowering. The brak­ing distance must not be more than 50 mm.

• Traverse the trolley the complete length of the trolley runway
ensuring that the 2 - 4 mm clearance between the trolley wheel
flange and the beam edge is maintained at all times. Check
that the beam end stops are positioned correctly and secure.

5. OPERATION

In addition to the recommendations in section 1, following rules
must be strictly maintained to ensure the safe operation of the
hoist

Installation, Service, Operation

Users delegated to install, service or independently operate
the hoist must have had suitable training and be competent.
Users are to be specifically nominated by the company and
must be familiar with all relevant safety regulations.

Operating pressure (flow pressure) P 4 5 6 bar

Motor rating P 2 2,75 3,2 kW

RPM (under load) n

bel

2500 2800 3200 1/min

RPM (unloaded) n

leer

4600 5200 5700 1/min

Air consumption at P

Nenn

V 2,9 3,9 4,7 m3/min

8

Initial inspection Interval inspection

Inspections and service
work

when
commissioning

after
50 service
hours

after
200 service
hours

daily

after
200 service
hours

annual

Compressed air
components
compressed air supply

•

•

Press-button control Strain
relief

•

•

•

Lubricate load chain

• • •

•

Check for wear in chain
drive

• •

•

Function of slip clutch

•

•

Function of brake

•

•

Chain bolts for cracks

•

•

Check suspension and
load hooks for cracks and
deformation

•

•

Screwed connections for
tightness

•

•

Check trolley for cracks
and deformation

•

•

Oil level in gearbox

•

•

•

Oil change, gearbox

•

•

Check hoist motor and
gearbox

•

Check trolley motor and
gearbox

•

Grease drive transmission

•

Grease lower block

•

•

•

6. SERVICE

Service and inspections may only be carried out by a compe­tent person.
The inspection must determine that all safety devices are
present and fully operational and cover the condition of the
hoist, lifting gear, accessories and supporting constructions.
The service intervals inspections noted are for normal work­ing conditions. Adverse working conditions e.g., heat or chemi­cal environments can dictate shorter periods.
Yale pneumatic hoists conform to the machinery group 1AM
resp. 1Bm in accordance with FEM 9.511. This results in a
theoretical service-lifetime of 800 resp. 400 operating hours
under full load. This is equivalent to 10 years under normal
operating conditions. After this period the hoist requires a gen­eral overhaul. Further information is contained in VBG 9 resp.
FEM 9.755.

6.1 DAILY CHECKS

1.) Visually check the pendant control unit and air hoses for
damage.

2.) Check that the brake functions correctly.

3.) Check that the overload safety device functions correctly.

4.) Chain hoists with trolley:
– Check that the trolley runway is free from obstructions.
– Check that the end stops on the trolley runway are fitted

and secured.

6.2 REGULAR INSPECTIONS, SERVICE, TESTING

According to national and international safety regulations hoist­ing equipment must be inspected annually by a competent
person. Adverse working conditions e.g., heat or chemical
environments can dictate shorter periods.
The commissioning and inspection details can be noted in the
enclosed inspection sheet.
Repairs may only be carried out by specialist workshops that
use original Yale spare parts.

Attention: Disconnect the air supply before performing test
unless air is required for a particular test.

9

6.3 LOAD CHAIN

The Yale load chain is quality class 8 chain with the meas­urements 11 x 13. Yale electric hoists are specially designed
to use this type of chain. For this reason only chains that
have been approved by the manufacturer may be used in
these hoists.

Lubricating the load chain

The load chain is to be lubricated before initial operation
and every 3 months but at the latest after 200 operating hours.
Adverse working conditions, e.g. excessive dust or contin­ued heavy duty can dictate shorter periods between lubrica­tion.

Before the chain is lubricated it must be cleaned. Flame­cleaning is forbidden. Use only cleansing methods and
agents that do not corrode the chain material. Avoid cleans­ing methods that can lead to hydrogen brittleness, e.g. spray­ing or dipping chain in caustic solvents. Also avoid surface
treatments that can hide cracks and flaws or other surface
damage.

The chain must be lubricated in a no-load condition so that
lubricant can enter between the links, e.g. by dipping in oil.
The whole chain must be lubricated.

Motor oil of the viscosity class 100, e.g. Shell Tonna T68 can
be used to lubricate the chain. For very dusty applications
use a dry lubricant.

Inspecting the load chain for wear

Load chains must be inspected every three months or at the
latest after 200 operating hours (see VBG8 § 27 or local
specifications).

Visually inspect the chain over its full length for deformation,
cracks, flaws, elongation, wear or corrosive pitting.

Link chains must be replaced when the nominal thickness
“d” on any part of the chain has been reduced by more than
10% (see fig. 4) or when the partition “t” is elongated by
more than 2% or over 11 partitions (11 x t) by 2%. Nominal
dimensions and wear limits are shown in following table.

Chains that do not fulfil all requirements must be replaced
immediately.

Replace the load chain

Single-fall design

1.) Disassemble lower block
Remove the circlip with suitable pliers. Raise the swivel
tube in the direction of the chain and tap out the chain pin
with a drift.
Attention: Do not damage the chain pin bore.

2.) Remove the chain stop
Remove the 2 screws and remove the chain stop. The chain
is now free.

3.) Fitting the new chain
Cut the second to last link open on the loose end of the
load chain to form a “C”. Remove the last link and connect
the new chain. The new chain must be fitted so that the
welds on the standing links face towards the chain guide
and away from the chain wheel. Operate the hoist in the
“lift” direction to feed the new chain through the hoist.

4.) Fitting lower block and chain stop
Slide the end buffers over the chain ends and refit lower
block and chain stop. The chain stop must be fitted so that
at least 1 link remains free (see fig. 1).

5.) Before initial operation lubricate the unloaded chain and
test all hoist functions under a no-load condition

Two-fall design.

1.) Remove the chain anchor pin
The chain anchor pin is situated on the underside of the
hoist body. With an Allen key remove the grub screw that
serves as the locking device. Tap out the chain anchor pin
from the other side with a drift.
Attention: Do not damage anchor pin or bore.

2.) Pull the load chain through the lower block and remove
the chain stop.

3.) Fitting the new chain
Cut the second to last link open on the loose end of the
load chain to form a “C”. Remove the last link and connect
the new chain. The new chain must be fitted so that the
welds on the standing links face towards the chain guide
and away from the chain wheel. Operate the hoist in the
“lower” direction to feed the new chain through the hoist.

4.) Replace chain stop
Slide the buffer pad over the loose end of the load chain
and refit chain stop ensuring that at least one link remains
free (see fig. 1).

5.) Fitting the chain anchor pin
Inspect the chain anchor pin for flaws, cracks or burrs.
Thread the load chain, ensuring it is not twisted, through
the lower block. Enter the last link of the load chain into the
slot in the underside of the hoist body and enter the anchor
pin through the side bore. Move the last link back and forth
while entering the anchor pin to ensure that it is not trapped
and damaged by the anchor pin. Secure the chain anchor
pin with the grub screw.

6.) Assemble the lower block
Check the chain wheel for damage. Grease the needle bear­ings in the lower block halves. Place the load hook and the
buffer in the slots provided in one lower block half. Wrap the
load chain around the chain wheel ensuring that the chain is
not twisted and that the welds on the standing links face
away from the chain wheel. Engage the chain wheel, with
load chain, into the pre-assembled lower block half. Ensur­ing that the buffer pad is situated correctly in its groove re­place the second lower block half and secure with the screws.

d1 + d

2

2

<
=

d = nominal thickness of chain
d1, d2 = Actual value

dm = 0,9 d

t

11 x t

d

1

d

2

Link chain 11 x 31 min. quality class 8

Inspection Dim.

Nominal value

[mm]

Limit value

[mm]

Elongation over 11 partitions 11 • t 341 347

Elongation over 1 partition t 31 32

Average link thickness

d

1+d2

2

11,3 10,2

10

7.) Functional test
All units with two or more chain strands must be inspected
before initial operation for twisted or kinked chains. Chain
strands may become twisted if the lower block is rolled over.
If a strand is twisted disconnect it from the hoist and re­thread it correctly. In some cases it may be necessary to
remove the last link

8.) Before initial operation lubricate the unloaded chain and
test all hoist functions under a no-load condition.

6.4 LOAD AND SUSPENSION HOOKS

Inspect the hooks for deformation, damage, surface cracks,
wear and signs of corrosion as required but at least annu-
ally. Adverse working conditions may dictate much shorter
periods. Hooks that do not fulfil all requirements must be
replaced immediately. Welding on hooks to compensate for
wear or damage is not permissible. Hooks must be replaced
when the mouth of the hook has opened more than 10%
(fig. 14) or the nominal value of other dimensions has de­creased by 5% due to wear. Nominal dimensions and wear
limits are shown in the following table. Discard all hooks
that do not fulfil all the requirements of the following table.

6.5 TROLLEYS

In particular check following parts:

• Sideplates:
For cracks or deformation in particular around the areas of
screwed connections.

• Trolley wheels:
Visually check for cracks. Wear on trolley wheel flanges.
Grease the transmission.

• Traverses:
In particular around threaded areas for cracks.

• Fasteners:
Check nuts, screws and locking devices for tightness.

6.6 PNEUMATIC HOISTS IN GENERAL

In particular check following parts:

• Threaded connections in general
Check all nuts, screws and locking devices for tightness.

• Chain bin
Ensure the bin is secure. Check for tears or wear

• Suspension bolts
(Connection between hoist and suspension hook resp. trol­ley)
Check for cracks or wear. Ensure all safety devices are in
place and secure.

6.7 OVERLOAD PROTECTION DEVICE

The overload protection device is factory set to 110%
+/- 10% of the rated lifting capacity and can be checked by
lifting a suitable load. If the device slips at the rated capac­ity load it can be adjusted as follows (see fig. 19):
Remove the screws (52) that retain the gearbox cover (51).
Loosen the set screw (47) that presses the steel ball (46)
onto the housing. Turn the adjuster (42) clockwise to in­crease the tension. Re-check the adjustment with a suit­able load. Secure the set screw (47) with a suitable locking
agent, e.g. loctite 243. Replace the gearbox cover (51) and
secure with screws (52).

6.8 GEARBOX

The gearbox is practically service-free. Service is there­fore reduced to checking the oil level and changing the oil.

Check oil level

Ensure that the hoist is horizontal and has been stationary
for at least 30 minutes (this allows the oil to drain to the
lower part of the gearbox). Remove the fill-plug. Oil should
be up to the lower edge of the fill hole.

Oil change

The oil (around 0,3 l) is to be changed every 5 years or at
the latest after 400 operating hours.
Remove the screws (52) that retain the gearbox cover (51).
Remove the fill-plug (44). Tip the hoist vertical so that the
oil can drain from the fill hole into a suitable container (can
take up to 30 min.). Replenish the gearbox oil. We recom­mend a mineral oil viscosity class ISO-VG 460 e.g. FINA
GIRAN L 460. Finally re-adjust the overload protection de­vice and secure the screw with a locking-agent, e.g. Loctite

241.

CPA 20 / 30 CPA 40 / 50 / 60

Inspection Dim. Nominal

[mm]

Limit

[mm]

Nominal

[mm

Limit

[mm]

Hook saddle b

2

24 22,8 29,5 28

Hook saddle h

2

35 33,2 44,5 42,3

Mouth
dimension

a

2

43 47,3 54 59,4

Fig. 14