6.4.3.
Once completely lowered remove the jack from under the vehicle. If you have finished using the jack, turn the air supply off, disconnect
the jack from the air line and store the jack and air line accordingly.
Note:
Always store the jack with the piston rod in the lowest position to prevent weakening the return springs (14).
7. MAINTENANCE
IMPORTANT: Only fully qualified personnel should attempt maintenance or repair.
WARNING!
Disconnect jack from air supply before changing parts, servicing or performing any maintenance.
7.1.
When the jack is not in use, the piston rod must be in the lowest position to minimise corrosion.
7.2.
Keep the jack clean and lubricate all moving parts on a regular basis.
7.3.
To check oil level, fully lower Jack. Remove the oil filler screw (16). The correct oil level should be up to the entrance of the oil filler
opening.
7.4.
If oil level is low, fill as required.
NOTE:
Use a good quality Jack oil, such as SEALEY HYDRAULIC JACK OIL.
WARNING! DO NOT
use brake fluid, or any fluid other than hydraulic jack fluid as this may cause serious damage to the Jack and will
invalidate the warranty!
WARNING!
wear safety goggles.
7.5.
Grit or gum deposits in the air pump may also reduce performance. Remove the filter (10) and clean it. Allow to dry before use.
7.6.
Should the piston not rise and the oil level and operation is correct, this may indicate a problem with air seeping into the hydraulic
valve passage. Purge any air from the system, see paragraph 6.2.
7.7.
Confirm that the piston can rise to the highest position.
7.8.
If the air system does not have an oiler, lubricate the air pump once or twice a month with a few drops of Sealey air tool oil dripped into
the air inlet to prolong air pump life.
7.9.
After a year of extensive use, the oil should be replaced in order to extend the life of your equipment. To drain the oil, remove the oil
filler screw (16). Make sure that no dirt is allowed to enter the hydraulic system’s oil. See 7.3. for refilling instructions.
7.10.
Periodically check the 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.
Owing to their size and weight, hydraulic products should ideally be repaired by local service agents. we have service / repair
agents in
most parts of the UK. Before returning your product please call our technical helpline on
01284 757505
for advice and trouble shooting
guidance.
If the jack is under guarantee please contact your stockist.
8. TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
REMEDY
Jack will not lift the load
1. Release valve not tightly closed.
1. Tighten release valve
2. Low oil level
2. Check and add oil, see section 7.
3. Defective or worn internal parts.
3. Discontinue use and contact a repair centre.
4. Load exceeds maximum allowance.
4. Use a higher capacity jack.
Jack will not hold the load
1. Release valve not tightly closed.
1. Tighten release valve.
2. Hydraulic unit malfunction.
2. Discontinue use and contact a repair centre.
Jack will not descend to minimum
height, or will not remain in
lowered position.
1. Air trapped in system.
1. Bleed system, see section 6.2.
2. Reservoir oil overfilled.
2. Check and ensure proper oil level, see section 6.2.
Jack will not lift to max. height.
1. Low oil level.
1. Check and ensure proper oil level, see section 6.2.
Jack will not function after above
solutions have been tried.
1. Internal malfunction or structural damage.
1. Discontinue use and contact an authorised repair
centre.
YAJ20B.V3 Issue 3(S) - 21/06/17
Original Language Version
© Jack Sealey Limited
