1020le | issue 3 25/08/16
Original Language Version
© Jack sealey limited
6. TrouBle SHooTinG
6.1.
if jack will not lift load.
6.1.1.
oil level may be low. check oil level as described in section 5.6. and top up
if necessary.
6.1.2.
to ensure complete distribution of the oil go through the following procedure.
close the release valve and manually pull the lifting arm up to its full height.
open the release valve and, by stepping on the saddle, force the arm to
lower as rapidly as possible. repeat this operation three or four times.
This procedure also thoroughly flushes the valves and in most cases will
restore the jack to full working order. the jack may have air trapped in the
system. to eliminate trapped air open the release valve and pump the
handle through its full stroke six times. close release valve.
6.1.3.
After several months of service the pump ‘o’ ring seal may become worn.
if this is suspected take the jack to an approved agent for servicing.
6.1.4.
the release valve may be held open by dirt on the valve seat. flush by
pulling the lifting arm up and down several times manually while the release
valve is open.
6.1.5.
the load is heavier than 2 tonnes and the overload valve has operated.
the overload valve is factory set and should not be altered.
6.2.
if jack will not hold the load.
6.2.1.
the discharge valve may be held open by dirt on the seat. Perform the procedure described in section 6.1.2. if this does not solve the
problem take the jack to an approved agent for servicing.
6.2.2.
Where a jack has received heavy service the ram cup seal may become worn. if this is suspected take the jack to an approved agent
for servicing.
6.2.3.
release valve partially open. fully close release valve.
6.3.
if jack will not lower completely.
6.3.1.
the lifting arm return spring may be broken or unhooked. replace return spring.
6.3.2.
Jack requires lubrication. clean and oil all moving parts in the lifting arm mechanism.
6.3.3.
Hydraulic unit is overfilled with oil. Drain off excess oil.
6.4.
jack will not lift full 2 tonne load.
6.4.1.
Piston ‘o’ ring seal may have become worn. if this is suspected take the jack to an approved agent for servicing.
6.4.2.
the jack may have air trapped in the system. see section 6.1.2.
6.4.3.
the load is heavier than 2 tonnes and the overload valve has operated. the overload valve is factory set and should not be altered.
6.4.4.
Jack frame/link system distorted due to overloading or poor positioning. return to an approved service agent for replacement of
damaged parts.
fig.3
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.
iMporTanT:
no liability is accepted for incorrect use of this product.
warranTy:
Guarantee is 12 months from purchase date, proof of which will be required for any claim.
sole uK distributor, sealey Group.
Kempson Way, suffolk Business Park,
Bury st. edmunds, suffolk.
iP32 7Ar
www.sealey.co.uk
01284 757500
01284 703534
environmental 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 off any fluids (if applicable)
into approved containers and dispose of the product and the fluids according to local regulations.
parts support is available for this product. To obtain a parts listing and/or diagram,
please log on to www.sealey.co.uk, email [email protected] or telephone 01284 757500.