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IMPORTANT! DO NOT pollute the environment by allowing
uncontrolled discharge of waste oil.
DISPOSAL OF HYDRAULIC FLUID
Do not drain hydraulic oil into the sewer system or dispose in an
uncontrolled location. Hydraulic fluid may take more than a year
to breakdown in the environment and the ingredients may still be
toxic. Contact your local municipality for proper disposal
instructions or locations.
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)
No oil flow
Oil on Press.
Cylinder ram
doesn't
move.
Visit www.princessauto.com for more information
20 TON 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.
Suggested Solution(s)
1. Check oil level. Fill as required.
2. Loosen fitting to bleed line.
3. Check pressure gauge. Replace
if defective.
3.1 Check control valve. Clean,
repair or replace as required.
Check cylinder seals. Oil
bypassing in cylinder.
Replace seals.
1. Replace seals as required.
2. Tighten or add sealant as
required.
2.1 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.
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