4.2. LIFTING
WARNING!
Ensure you prepare vehicle and use jack according to Section 1 Safety Instructions.
4.2.1. Check that the ground upon which the jack will stand is level and solid.
4.2.2. Position the jack saddle (3) under the vehicle manufacturer’s recommended lifting point.
4.2.3. Position jack so as to avoid having to operate it from under the vehicle and so that the handle can be moved up and down without hitting
any part of the vehicle.
4.2.4. Using the screw extension as necessary, raise the saddle to the lifting point. Ensure that the saddle is correctly centred beneath the lifting
point.
4.2.5. Pump the handle up and down using the full stroke until the required lift is achieved.
4.2.6. Should the jack become overloaded, a safety overload valve will open, and stop the vehicle from lifting.
4.2.7. Lower the vehicle onto suitable axle stands before attempting any work.
4.3. LOWERING
4.3.1. Ensure that the axle stands are removed and that there are no persons or obstacles beneath the vehicle, or in the path of its descent.
4.3.2. The lowering speed is controlled by the amount the release valve (1) is opened. Turn valve anti-clockwise and lower slowly and carefully.
5. MAINTENANCE
IMPORTANT:
Only fully qualified personnel should attempt maintenance or repair.
NOTE:
Use Sealey quality hydraulic jack oil, Model No.s HJO500MLS / HJO5LS to top up or replace the hydraulic fluid.
5.1.
When the jack is not in use, the ram and piston must be in their lowest positions to minimise corrosion. Remove the handle to inactivate jack.
5.2.
Keep the jack clean and lubricate all moving parts with acid free oil on a regular basis.
5.3.
To check oil level, fully lower the jack. Remove filler plug. The correct oil level is to the bottom of the filler opening.
5.4.
After a year of extensive use, the oil should be replaced in order to extend the life of the jack. Drain the oil through the filler plug opening.
Make sure that no dirt is allowed to enter the jack or the fresh oil.
5.5.
To replace the oil, fill as required. Pump (unloaded jack) 5 or 6 times to expel air. Pump jack to full height and pour off excess oil before
refitting plug.
NOTE:
Ensure waste oil is disposed of in accordance with local authority regulations.
Before each use check for broken, cracked, bent, or loose parts. Also check for any visible damage to welds, ram, pump, body and base.
If any suspect item is found, remove jack from service and take the necessary action to remedy the problem.
8
DO NOT
use the jack if believed to have been subjected to abnormal load or shock. Inspect and take appropriate action.
5.6.
Periodically check the pump piston and piston rod for signs of corrosion. Clean exposed areas with a clean oiled cloth.
IMPORTANT: NO RESPONSIBILITY IS ACCEPTED FOR INCORRECT USE OF THE MACHINE
Hydraulic products are only repaired by authorised service agents. We have service/repair agents in all parts of the UK.
8
DO NOT RETURN JACKS TO US.
Please telephone 01284 757500 to obtain address and phone number of your local authorised agent.
If jack is under guarantee please contact your dealer.
DE-COMMISSIONING:
Draw off the oil into an approved container and dispose of the jack and the oil according to local regulations.
6. TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
REMEDY
Jack will not lift
the load
1) Overloaded
2) Oil level low
3) Release valve not correctly closed
4) Air in system
5) Packing worn or defective
1) Be sure to use jack with adequate capacity
2) Top up oil level
3) Check and close release valve
4) Open release valve and air vent (if fitted) and pump the handle a few times. Close
valve and re-try
5) Return jack to authorised service agent
Jack does not lift
high enough or
feels “spongy”
1) Oil level low
2) Worn seals
3) Air in system
4) Release valve not closed
1) Top up oil level
2) Return jack to authorised service agent
3) Open release valve and air vent (if fitted) and pump the handle a few times. Close
valve and re-try
4) Check and close release valve
Jack lifts but will
not hold load
1) Release valve partially open
2) Dirt on valve seats
3) Air in system
4) Faulty seals
1) Check and close release valve
2) Lower jack, close release valve. Pull up lifting arm to full height by hand. Open the
release valve to lower arm
3) Open release valve and air vent (if fitted) and pump the handle a few times. Close
valve and re-try
4) Return jack to authorised service agent
Jack will not lower
completely
1) Ram damaged
2) Air in system
3) Release valve partially open
1) Contact authorised service agent
2) Open release valve and air vent (if fitted) and pump the handle a few times. Close
valve and re-try
3) Check and fully open release valve
SJ50.V2 | Issue 2 (F,2,3) 25/06/19
Original Language Version
© Jack Sealey Limited
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
01284 703534
www.sealey.co.uk
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
Note
: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice. Please note that other versions of this product are available. If you require documentation for alternative versions, please email or call
our technical team on [email protected] or 01284 757505.
Important:
No Liability is accepted for incorrect use of this product.
Warranty
: Guarantee is 12 months from purchase date, proof of which is required for any claim.
