Clarke Strong-Arm CTJ2250LP Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
ORIGINAL INSTRUCTIONS GC0719 ISS -2
2¼ TONNE TROLLEY JACK
MODEL NO: CTJ2250LP
PART NO: 7623070

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INTRODUCTION
Thank you for purchasing this CLARKE Trolley Jack.
Before attempting to use this product, please read this manual throughout
and follow the instructions carefully. Thoroughly familiarise yourself with this
product & its operation in order to ensure the safety of yourself and others
around you. In doing so, you can look forward to the product giving you long
and satisfactory service.
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt which will be
required as proof of purchase. This guarantee is invalid if the product is found
to have been abused or tampered with in any way, or not used for it’s
intended purpose.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission. This guarantee does not effect your
statutory rights.
SPECIFICATION
Model number CTJ2250LP
Part number 7623070
Length (not including handle): 560 mm
Width 225 mm
Height 150 mm
Height of saddle from floor (minimum) 80 mm
Height of saddle from floor (maximum) 380 mm
Weight 13.7 kg
Rated Load 2.25 tonne
Oil capacity 115 ml
No of strokes from min to max height 36
Distance raised per stroke 7.9 mm (average)

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GENERAL SAFETY PRECAUTIONS
1. ALWAYS read and ensure you fully understand the following precautions
and the hazards associated with this product. Do not allow anyone who
has not read these instructions to use the jack.
2. Only use this jack for its intended purpose.
3. NEVER carry out any modifications to this product. If experiencing difficulty
of any kind consult your local dealer.
WORK AREA
1. NEVER use the jack on sloping surfaces, only on level ground. The jack may
move away slightly as soon as it lifts the tyre from the ground.
2. DO NOT start the vehicle engine with the jack in use.
3. This jack is for lifting only. DO NOT move a load using the jack as a dolly.
4. Ensure the load is taken by the full saddle and that the point of lift on the
load is of sufficient strength to support the full load adequately.
5. Never allow children or bystanders in the area while the jack is in use.
6. NEVER work underneath a vehicle supported only by this product. If
working under a vehicle, always use axle stands designed for the purpose.
7. Ensure the jack is on a firm solid base and that there is no likelihood of it
slipping when under load.
8. Ensure that all personnel are well clear of a load being raised or lowered.
SERVICING & REPAIRS
1. Check the jack for damage before use and do not use if damaged. If in
doubt, DO NOT use. Consult your local dealer.
2. ALWAYS use spare parts supplied by Clarke International. Using non-
standard parts could be extremely dangerous.
3. Ensure the jack is properly maintained at all times and that no damage is
allowed to weaken any part of it. Do not use if an oil leak is apparent.
4. When necessary, have your jack serviced or repaired by a qualified
technician using identical replacement parts. This will ensure that the safety
of the jack is maintained
5. NEVER exceed the rated load or use the jack if it has been subjected to
excess load (over 2.25 tonne). The jack should be removed from service
immediately and fully inspected by qualified personnel and passed as
serviceable before further use.
Please keep these instructions in a safe place for future reference

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OPERATION
Before use, visually inspect the jack for oil leaks or any other sign of damage.
Should any be apparent, have the jack inspected and repaired by a qualified
technician before use.
The CTJ2250LP trolley jack is equipped with an operating handle which can
also be used as a wheel brace, in conjunction with the double-ended sockets
carried in the socket holder..
1. Ensure the vehicle to be raised is stable and on firm level ground with the
supporting wheels chocked.
2. Position the jack so that the saddle is directly beneath the lifting point.
• Consult the vehicle handbook to determine suitable lifting points.
3. Engage the handle with the
control valve shown in Fig 1and
turn it clockwise to close the valve
4. Insert the handle into the handle
sleeve and pump the handle to
raise the saddle until it reaches
the vehicle lifting point.
NOTE: The control valve is able to
rotate through 360 deg as
shown in Fig 2, & can
therefore be operated from any position.
5. Take care that there are no
obstructions to prevent a clean
lift. Keep all personnel at a safe
distance before continuing to
pump the handle to raise the
vehicle.
NOTE: The jack may move slightly
during operation. It is
important therefore, that
the floor is clean and
completely free from debris.
WARNING: NEVER WORK ON THE VEHICLE WHEN SUPPORTED ONLY BY A
JACK. THIS IS A HIGHLY DANGEROUS PRACTICE. THE VEHICLE MUST BE
SUPPORTED ON AXLE STANDS, OR SUITABLE SUPPORTS, BENEATH THE
JACKING/SUPPORT POINTS RECOMMENDED BY THE VEHICLE
MANUFACTURER. THERE SHOULD BE NO LOAD ON THE JACK.

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6. Position axle stands directly beneath suitable supporting points below the
vehicle, before engaging the handle with the control valve and very
gently twisting the handle anticlockwise.
• This will open the control valve to lower the load onto the stands.
7. To stop it lowering, turn the handle clockwise again. Always avoid a rapid
descent by turning the handle slowly.
8. Carefully lower the vehicle onto the axle stand, checking constantly,
preferably with an assistant, that the vehicles supporting point rests snugly
and cleanly on the stand, and that the supporting stand is stable before all
the weight is taken.
NOTE: Ensure this operation is carried out under complete control. DO
NOT allow the load to drop suddenly as this could damage
internal parts.
9. Completely remove the jack from the vehicle.
MAINTENANCE
PURGING AIR FROM THE SYSTEM
If air bubbles become trapped inside the hydraulic system, the efficiency of
the jack will be reduced. Any air can be purged from the system as follows.
1. Turn the control valve counter-clockwise and remove the filler plug.
2. Pump the handle several times to purge air from the system.
3. Replace the filler plug, then turn the control valve clockwise and test the
jack. If efficiency is still low, check the oil level as below.
CHECKING THE OIL LEVEL
If the jack has been stored for long periods, check for oil leaks before use. If
necessary, check the oil level as follows:
1. Ensure the jack is fully lowered by using the handle to turn the control valve
fully anticlockwise.
2. Lift up the cover plate and remove the oil filler plug on the top of the ram
assembly. A large cross headed screwdriver is required.
• The oil should be almost level with the bottom of the oil filler hole.
• Top up using Clarke Hydraulic Oil (p/n 3050830 for 1 litre).
OIL REPLACEMENT
1. With the jack lowered, remove the filler plug. Tilt the jack onto its side and
drain the old oil into a container.

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2. Return the jack to upright and refill with hydraulic oil up to the lower rim of
the filler hole.
3. Purge any air from the system and replace the filler plug.
4. Dispose of old oil appropriately and be sure to wipe up any spillage.
GENERAL CARE
1. Periodically lubricate the hinges, front wheels & rear castors with light oil.
2. Store in a dry location with the arm in its lowest position.
3. In the event of damage or broken components, replacements are
available from Clarke Parts & Service.
TROUBLESHOOTING
If any of these remedies fail to restore your jack, consult your Clarke dealer.
PROBLEM CAUSE SOLUTION
Jack will not lift
the rated load
Low oil level See ‘Checking the Oil Level‘
Release valve not
closed
Turn the release knob fully clockwise
Air in the hydraulic
system
Purge the system as on page 5
Jack lower when
under load
Release valve not
fully closed
Turn the release knob fully clockwise
Air in the hydraulic
system
Purge the system as on page 5
Pump feels
Spongy
Low oil level See ‘Checking the Oil Level‘
Air in the hydraulic
system
Purge the system as on page 5
Handle raises or
flies back under
load
Air in the hydraulic
system
Purge the system as on page 5
Jack will not lift
full height
Low oil level See ‘Checking the Oil Level‘
Air in the system Purge the system as on page 5
Jack will not
lower completely
Return spring may
be faulty
Return to your Clarke dealer for
repair

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COMPONENT PARTS - RAM ASSEMBLY

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COMPONENT PARTS
No Description No Description
1Front wheel 29 Front axle
2Bush 30 Lifting arm assembly
3Flat washer 31 Centre shaft
4Spring washer 32 Saddle
5Nut M12 33 Saddle support
6Left frame 34 Circlip No17
7Socket holder 35 Ram pivot shaft
8Nut M5 36 Filler plug
9Socket 17/19 mm 37 Saddle pad
10 Socket 21/23 mm 38 O-ring 7.8 x1.9
11 Nut 39 Back-up ring
12 Rear castor assembly 40 U-seal
13 Spring washer 41 Pump cylinder
14 Nut M8 42 Pump body
15 Carrying handle 43 Swivel
16 Cover 44 Steel ball
17 Bolt M5 x 15 45 Release valve
18 Retaining spring 46 O-ring 6x3
19 Bush 47 Release valve pin
20 Ram assembly 48 Safety valve cap
21 Right frame 49 Safety valve screw
22 Tie rod 50 Safety valve spring
23 Lifting arm axle 51 Safety valve plunger
24 Not used 52 Steel ball 4mm
25 Circlip No12 53 Control valve body
26 Handle/brace 54 Nylon washer
27 Tie plate 55 Steel ball 3/16”
28 Shaft 56 Washer

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COMPONENT PARTS - GENERAL ASSEMBLY

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COMPONENT PARTS
No Description No Description
57 Ram cylinder 66 O-ring 21.7 x 3
58 Oil reservoir 67 Handle socket
59 Oil filling plug 68 Piston pivot
60 U-seal 69 Handle hinge pin
61 O-ring retainer 70 Split pin
62 Guide ring 71 Pump connecting clip
63 Ram piston 72 Actuating piston
64 Nylon washer Hydraulic seal kit
65 Reservoir end cap
ENVIRONMENTAL PROTECTION
One of the most damaging sources of environmental pollution is oil products.
Never throw away used hydraulic oil with domestic refuse or flush it down a
sink or drain. Collect all the hydraulic oil in a leak proof container and take it to
your local waste disposal site