Clarke Strong-Arm CBJ2B Troubleshooting guide

OPERATION AND MAINTENANCE
GC0615
INSTRUCTIONS
BOTTLE JACK
MODEL NO: CBJ2,3,5,8,10,12,15 & 20B
PART NO: 7620006,7620008,76200012,7620022,7620027,7620032,7620034 & 7620037

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
INTRODUCTION
Thank you for purchasing this CLARKE Bottle Jack.
Before attempting to use this product, please read this manual thoroughly and
follow the instructions carefully. In doing so you will ensure the safety of yourself
and that of others around you, and you can look forward to your purchase
giving you long and satisfactory service. Keep these instructions for future
reference.
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 the purpose for which it was
intended.
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.
SPECIFICATIONS
CBJ2B CBJ3B CBJ5B CBJ8B CBJ10B CBJ12B CBJ15B CBJ20B
Rated Load
(tonnes)
235810121520
Min Height
of saddle
(mm)
148 180 185 190 195 200 205 217
Max Height
of saddle
(mm)
276 350 355 365 375 380 390 407
Oil capacity 0.065L 0.13L 0.175L 0.22L 0.25L 0.3L 0.34L 0.44L
Dimensions
(L x W x H)
mm
88 x
92 x
148
92 x
100 x
180
96 x
110 x
185
103 x
118 x
190
110 x
123 x
195
116 x
136 x
200
133x
136 x
205
144 x
150 x
217
Weight (kg) 2.46 3.28 4.08 4.88 5.97 6.77 7.77 10.27

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
SAFETY PRECAUTIONS
1. Do not exceed the rated capacity of the jack.
2. Do not allow personnel to operate the jack unless they have read these
safety precautions.
3. Do not operate the jack if damaged.
4. Use the jack in a suitable, well lit work area.
5. Keep the work area clean and tidy and free from unrelated items.
6. Only use the jack on level and solid ground, preferably concrete. Avoid
soft/unmade ground as the jack may sink in or move.
7. Ensure non-essential persons keep a safe distance whilst the jack is in use.
8. Ensure there are no personnel or obstructions under the vehicle before
lowering.
9. Do not work under the vehicle until it is fully supported by axle stands.
10. Keep hands etc clear of the vehicle until lifting is complete.
11. Ensure that you can see the saddle and jacking point throughout the
jacking operation in case there is any relative movement.
12. Always ensure that the jack saddle is centred and stable on the lifting point
before lifting and position the jack to avoid operating it from under the
vehicle.
13. Check the vehicle weight and recommended lifting points by referring to
the vehicle owners manual. Ensure the lifting point is not corroded.
14. Never tamper with the jack or modify it in any way, as this could prove to
be dangerous and will invalidate the guarantee. Only use the jack for the
purpose for which it is intended.
15. Use appropriate safety equipment, such as protective footwear, when
using this jack.
16. Ensure that the jack is properly maintained and lubricated at all times, and
that no corrosion is allowed to weaken any part of it.
17. If the jack has been subjected to an abnormal load or shock, it should be
removed from service immediately and fully inspected by qualified
personnel, and passed as serviceable, before being used again.
18. When not in use, store the jack, fully lowered, in a safe, dry, childproof area.
19. Always inspect the jack before use. Ensure that all parts are in good
condition and operating smoothly, and that no cracks or distortion is
apparent. If in doubt do not use.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
20. Never push a vehicle off the jack or start the engine while supported only
by the jack.
21. Do not use if an oil leak is apparent. Consult the Clarke Service
Department.
22. If more than one jack is used in unison, they must all be of the same rating
and be raised at the same speed/height to reduce the possibility of the
load slipping.
SAFETY SYMBOLS
The following safety symbols may be found on the product.
Read the user manual before use.
LIFTING OPERATIONS AND LIFTING EQUIPMENT REGULATIONS 1998
This jack, depending on use, may fall within the scope of LOLER. It is the owners
responsibility to determine whether or not it does and, if so, to comply with any
applicable requirements in LOLER, for having the jack thoroughly examined.
ENVIRONMENTAL PROTECTION
1. Take care to ensure that if hydraulic oil is spilt that it is cleaned away using
sand or treated with absorbent granules designed for the purpose.
2. Always make every effort to contain any spillage and prevent ingress into
the local water course.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
PRODUCT FEATURES
(CBJ5B shown)
UNPACKING
During transit or storage, it is possible that an air pocket may have developed
within the hydraulic ram, and the ram action may therefore appear to be
‘spongy’. In this case the jack may require purging of air as described on
page 8.
If the ram does not reach its full height, the oil level may require topping up, as
described in the Maintenance section.
1 Handle Tubes
2Ram
3 Screw Extension
4 Oil Filler Plug
5ActuatingLever
6 Release Valve
7 Safety Valve (non-adjustable)

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
OPERATION
RAISING A VEHICLE
1. Ensure the vehicle is stable and is on firm level ground with the wheels
chocked before positioning the jack so that is directly beneath the lifting
point. DO NOT rely upon the vehicle handbrake alone to prevent vehicle
movement.
2. Ensure the jack is on solid ground. If not, place a suitable piece of solid
wood of sufficient size to provide adequate support beneath the jack.
3. Consult the vehicle owners manual to ascertain the location of suitable
jacking points and position the jack beneath the designated lifting point.
4. Locate the oval end of the jack handle on to the release valve and turn
fully clockwise to close the valve.
5. Set the screw extension in contact with the lifting point. Pump the handle
and raise the ram so that the jack and lifting point are in full contact.
Before proceeding further, make one final check to ensure that:
• the jack is completely vertical and stable.
• there are no obstructions to the lift and that the handle can move
freely up and down.
• all personnel are in a safe position, well away from the underneath
of the vehicle.
6. When satisfied, continue to pump the handle and lift the load to the height
required.
7. NEVER allow anyone to get beneath the load until it is firmly supported on
suitable, properly rated axle stands.
LOWERING THE VEHICLE
1. The lowering speed is controlled by the amount you turn the release valve.
With the axle stands removed, check to ensure that there are no personnel
WARNING: ENSURE THE SAFETY PRECAUTIONS ARE STRICTLY FOLLOWED.
NO RESPONSIBILITY CAN BE ACCEPTED FOR INCORRECT USE OF THE
JACK.
WARNING: ALWAYS LOWER IN A SLOW AND CONTROLLED MANNER, AND
CHECK THAT THERE ARE NO OBSTACLES IN THE PATH OF THE LOAD’S
DESCENT. BE EXTREMELY CAREFUL WHEN LOWERING HEAVY LOADS.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
in the immediate vicinity before removing the handle from its housing, and
engaging it with the release valve.
2. Very slowly turn the handle anticlockwise to open the release valve, and
allow the jack to lower the load, under complete control. NEVER, under
any circumstances, jerk the valve open.
MAINTENANCE
IMPORTANT: Only fully qualified personnel should attempt to repair the jack.
INSPECTION
1. Always visually inspect the jack before use, to ensure that all parts are
correctly located and secure. Check for hydraulic leaks, signs of damage
or worn parts. Do not use the jack unless it is perfectly serviceable.
• A slight dampness on the ram is normal, but where leakage is found,
the ram seals must be renewed by your Clarke Service Department.
2. The jack should be fully inspected annually as follows:
• Check for cracks and deformation of components.
• Check operation and top up the oil level. (see below).
• Remove completely, any rust or corrosion and repaint to prevent
further corrosion.
3. After use, store the jack with the ram in its lowest position. This not only
relieves the hydraulic ram, but also prevents any possibility of corrosion to
the ram.
4. Do not leave the jack in the open, exposed to the weather. Keep under
cover. If stored for long periods, inspect before use, clean, and re-oil. For
servicing, contact your CLARKE dealer or CLARKE Service dept.
TOPPING UP THE OIL
It may be necessary from time to time to top up the hydraulic oil level.
Proceed as follows.
1. Turn the release valve anti-clockwise and allow the ram to retract to its
lowest position.
• It may be necessary to apply force to the saddle for lowering
without any weight on the jack.
2. With the jack upright, remove the filler plug.
• The oil should be level with the bottom of the oil filler hole.
3. If below this, top up.

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
4. Do not overfill. Only use the correct type of oil such as Clarke hydraulic oil
(part number 3050830).
5. Replace the filler plug.
6. Check the jack for correct operation and purge any air from the system as
described below.
PURGING AIR FROM THE JACK
1. Turn the release valve counterclockwise one full turn to open.
2. Pump the handle several strokes.
3. Turn the release valve clockwise to close the valve.
4. Pump the handle until the ram reaches maximum height and continue to
pump several times to remove trapped air.
5. Turn the release valve counterclockwise one full turn and lower the ram to
its lowest position. Apply pressure if necessary.
6. Turn the release valve clockwise to the closed position and check for
correct operation. It may be necessary to perform the procedure more
than once to evacuate all the air.
TROUBLESHOOTING
Problem Check Solution
Jack will not lift to full
height
Low oil level Check oil level
Jack will not hold load Release valve not closing
Hydraulic oil contaminated
Pump valves not sealing
Cylinder ram binding
Contact Clarke Service
Department
Jack piston will not
lower
Cylinder ram binding
Parts warn
Internal damage
Lift arm linkage bent or
binding
Contact Clarke Service
Department
Jack feels spongy
when lifting
See Air Purging section See air purging
procedure above

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
COMPONENT PARTS
Please contact the Clarke Spares Department for availability of seal kits,
handles or other component parts.
No Description No Description
1 Release valve assembly 9 Top cap
2 Base Casting 10 Actuating Arm
3 O-ring 11 Spring Clip
4 Hydraulic cylinder 12 Hinge Pin
5 Piston 13 Pump Plunger
6 Oil reservoir 14 Pump Body
7 Filler Plug 15 O-ring
8 Extension Screw

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Parts & Service: 020 8988 7400 / E-mail: [e-mail] or [e-mail]
ALSO AVAILABLE FROM CLARKE