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5.4.
WEIGHT DISTRIBUTION
Up to 80% of the lifted load is carried by the front jack wheels placing exceptional stress on the point of contact with the supporting
floor. For this reason use on a hard level concrete surface only.
5.5.
LOWERING THE LOAD (fig.3)
5.5.1.
Pull the handle upwards and turn it anti-clockwise. NOTE: The handle has a self-returning device (Dead Man principle) which requires
the user to hold the handle in position whilst lowering is taking place. The rate of lowering is governed internally by the jack.
WARNING! Ensure there are no persons or obstacles beneath the vehicle, or in the path of its descent.
‰
fig.3
6. MAINTENANCE
IMPORTANT: Only fully qualified personnel should attempt maintenance or repair.
6.1.
When the jack is not in use, the ram should be in its lowest position to minimise corrosion. Remove the handle to inactivate jack.
6.2.
Keep the jack clean and lubricate all moving parts with oil on a regular basis.
6.3.
To check the oil level, fully lower the jack. Remove the oil filler cover (fig.1) to expose the oil filler plug in the cylinder body (fig.4). The
correct oil level should be approximately 5mm below the filler opening. If oil level is low, fill as required. Pump unloaded jack 15 to 20
times to expel air and then refit plug and top cover.
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!
6.4.
Before each use check for broken, cracked, bent, or loose parts, or any visible damage to welds, ram, pump, saddle, lifting arm, 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 remedy the problem. DO NOT use the jack if believed to have been subjected to abnormal load or shock. Inspect and take
appropriate action.
6.5.
Every three months remove the locking rings on the caster wheels and lubricate the ball bearings with acid free grease.
6.6.
After a year of extensive use, the oil should be replaced in order to extend the life of your jack. To drain the oil, remove the filler plug.
Make sure that no dirt is allowed to enter the hydraulic system's oil. Dispose of oil according to local authority regulations.
6.7.
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 JACK.
Hydraulic products are only repaired by local service agents. We have service/repair agents in all parts of the UK.
DO NOT RETURN JACKS TO US. Please telephone us on 01284 757500 to obtain the address and phone number of your local
agent. If jack is under guarantee please contact your stockist.
7. TROUBLESHOOTING
Problem
Jack will not lift the load
Jack does not lift high
enough or feels "spongy"
Jack lifts poorly
© Jack Sealey Limited
Possible Cause
Overloaded
Oil level low
Release valve not correctly closed
Air in system
Piston rod not functioning
Packing worn or defective
Oil level too high or too low
Worn Seals
Air in system
Release valve not closed
Pump packing or valves malfunctioning
Oil is dirty
Air in the system
Original Language Version
fig.4
Remedy
Be sure to use jack with adequate capacity
Top up oil level
Check and close release valve
Check and close release valve and air vent (if fitted) and pump
the handle 15 to 20 times. Close valve and re-try.
Clean and replace oil
Replace packing
Fill or remove excess oil
Return jack to local service agent
Open release valve and air vent (if fitted) and pump the handle
15 to 20 times. Close valve and re-try
Check and close release valve and re-try
Replace packing and/or clean valves
Replace oil
Open release valve and air vent (if fitted) and pump the handle
15 to 20 times. Close valve and re-try
3100TB Issue 2 (1,4,6) 14/09/23
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