8604597
20 Ton Hydraulic Shop Press
V 4.1
12
For technical questions call 1-800-665-8685
TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the tool does not function
properly or parts are missing. If unable to do so, have a qualified technician service
the tool.
Problem(s)
Possible Cause(s)
Suggested Solution(s)
No oil flow
1. Cylinder doesn’t
move.
2. Air lock in the lines
3. No pressure reading
on gauge.
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.
Oil on Press. 1. Oil leaking from
cylinder.
2. Oil leaking from
loose fitting or line.
1. Replace seals as required.
2. Tighten or add sealant as required
a. Defective fitting. Replace.
Cylinder ram
doesn’t
move.
1. Hydraulic problems.
2. Press overloaded.
3. Ram jammed.
4. Ram binding.
5. Press efficiency
drops.
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.
