Specac Atlas 15T, User Manual, Page: 19 / 36

Atlas™ Manual 15T and 25T Hydraulic Press
19
Remedy: By pumping the press without the pressure release handle
( 30 ) tightened, the foreign matter may be removed from
the valve seat by a flow of oil washing through the system.
Pump the press about ten times. If this does not work,
then you will need to gain access to the non-return valve
ball bearing (
50 ) for inspection. The procedure to gain
access to this ball bearing is found in the Atlas™ Manual
Hydraulic Press Servicing Guide .
Cause 3: Release Valve Leaking. (This is a ball bearing ( 58 )
trapped behind the pressure release handle ( 30 ).) It is
likely that the ball bearing ( 58 ) is not seating correctly due
to foreign matter adhering to the seat or to the ball.
Remedy: Similar to the non-return valve procedure, pumping the
press without the pressure release handle ( 30 ) tightened
may remove the foreign matter from the valve seat by a
flow of oil washing through the system. Pump the press
about ten times. If this does not work, you will need to
gain access to the ball bearing (
58 ) for inspection.
Unscrew the pressure release handle ( 30 ) completely. A
small dribble of oil may flow from the hole when the
release handle assembly (
30 ) is removed, but the amount
lost is not significant. Check the O-ring ( 57 ) for signs of
wear or cracks etc and replace if necessary. The ball
bearing (
58 ) can be seen inside the hole resting in the
area of the valve seat. To remove the ball bearing the
press needs to be tipped over slightly, allowing the ball to
roll out.
Be careful when lifting the press as it is heavy ,
and also be careful not to lose the ball bearing if it rolls out
onto the work bench. Inspect the ball bearing, clean and
replace in the hole. Ensure that it rolls back into its valve
seat area. Replace the pressure release handle (
30 ),
tighten and re-pump.
Fault: Failure to achieve pressure in the pumping system
Cause 4: The oil filter (55) is blocked.