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Lowering the Jack
6.4.
6.4.1.
Ensure there are no persons or obstruction beneath the vehicle before lowering, and remove any axle stands.
6.4.2.
Whilst holding the main jack handle lowering is achieved by pushing the control lever to down position (fig.3A), and the jack will lower
in a controlled manner.
6.4.3.
Once completely lowered releasing the control lever will return to the middle hold position.
6.4.4.
Remove the jack from under the vehicle. If you have finished using the jack, turn the air pressure supply off and disconnect from the
air line and store the jack and air line accordingly.
7. MAINTENANCE
IMPORTANT: Only fully qualified personnel should attempt maintenance or repair.
9 9 WARNING! Disconnect jack from air supply before changing parts, servicing or performing any maintenance.
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9
7.1.
When the jack is not in use, the piston must be in the lowest position to minimise corrosion.
7.2.
Keep the jack clean and lubricate all moving parts with air tool oil on a regular basis.
7.3.
To check oil level, lower jack fully. Remove the filler plug (see fig.5). The oil surface should be level with the indicator inside the filler
hole. Top up the oil level if necessary but do not overfill as the jack will become inoperative. If inadvertently overfilled the excess oil
should be poured off. After topping up or pouring off excess oil it may become necessary to purge air from the unit. See section 6.2.
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
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invalidate the warranty!
7.4.
Ensure the air filter located in the air valve is clean.
7.5.
Should the piston not rise and the oil level is correct, this may indicate a problem with air seeping into the hydraulic valve passage.
Purge any air from the system. See 6.2
7.6.
Confirm that the piston can rise to the highest position.
7.7.
Before each use check for broken, cracked, bent, or loose parts; any visible damage to welds, piston, pump, saddle, air connector,
levers, frame and all parts including nuts, bolts, pins and other fasteners. If any suspect item is found, remove jack from service and
take necessary action to fix the problem.
DO NOT use the jack if believed to have been subjected to abnormal load or shock. Inspect and take appropriate action.
8
7.8.
After a year of extensive use, the oil should be replaced in order to extend the life of the jack. To drain the oil, remove
the filler plug and valve. Make sure that no dirt is allowed to enter the hydraulic system. See 7.3. for refilling instructions.
7.9.
Periodically check the pump piston and piston rod for signs of corrosion. Clean exposed areas with a clean oiled cloth.
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 dealer.
© Jack Sealey Limited
Fig.4
Original Language Version
Fig.5
YAJ30H.V2
Issue:1 19/09/18
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