Upright POWERED ACCESS TL34, Service Manual

Page: 54 / 79

OUTRIGGER RAM
Is fitted with two check valves. They have no
adjustment.
If the outrigger is not holding under load it is
most likely that the check valve for the full bore
side is leaking.
The check valves are difficult to get to as the
block is well protected from falling objects by
being tucked well away on the underside of
the ram. You have to remove the rod pin from
the outrigger when the outrigger is retracted.
You can now swing down the outrigger to free
the cylinder.
Both check valves are identical. You can swap
them over to see if the cylinder stop moving.
Remember the • full bore check ensures that
the outrigger stays down when you are up in
the air working. The annular • side check
ensures that the outrigger remains vertical
when you are towing the machine down the
road.
The • restrictor is critical to prevent the
outrigger juddering when raising the outrigger
to the transport position. Do not replace with a
non restricted hose adapter.
Outrigger cylinder with welded on block
containing the two check valves. The
restrictor shown is the hose adapter fitted
in the outrigger control valve
MAINTENANCE PROCEDURE
Page 20