V1.0
Problem(s)
No oil flow.
Oil on Press.
Cylinder ram
doesn't move.
Page 19
PNEUMATIC/HYDRAULIC SHOP PRESS
Possible Cause(s)
1.
Cylinder doesn't
move.
2.
Air lock in the lines.
3.
No pressure reading
on gauge.
1.
Oil leaking from
cylinder.
2.
Oil leaking from
loose fitting or line.
1.
Hydraulic problems.
2.
Press overloaded.
3.
Ram jammed.
4.
Ram binding.
5.
Press efficiency
drops.
Assistance available at www.princessauto.com or 1-800-665-8685
Suggested Solution(s)
1.
Check oil level. Fill as required.
2.
Loosen fitting to bleed line.
3.
Check pressure gauge. Replace if
defective.
a.
Check control valve. Clean,
repair or replace as required.
b.
Check cylinder seals. Oil
bypassing in cylinder. Replace
seals.
1.
Replace seals as required.
2.
Tighten or add sealant as required.
a.
Defective fitting. Replace.
1.
Check hydraulic system. Check
workpiece.
2.
Exceeded capacity of Press. Use a
larger press.
3.
Check cylinder. Remove defective
part and repair.
4.
Cylinder ram is bent. Replace ram
and seals. Use more care when
applying loads.
5.
Purge air from hydraulic system as
described in Bleeding the Hydraulic
System.
9081548