Dake Corporation
1809 Industrial Park Dr
Grand Haven, MI 49417
www.dakecorp.com
907003
11
REV112019
OTHER TROUBLESHOOTING
SYMPTOM
CAUSE
SOLUTION
Oil leaking from
piston oil seal.
1) Reservoir (Item 22) is over filled.
2) Piston Packing (Item 34) is worn
or damaged.
1) Drain excess oil.
2) Replace Piston Packing.
Press will not hold
pressure.
1) Check Ball (Item 2) is
contaminated.
2) Ball and Seat (Item 6) have poor
contact.
3) Piston Packing (Item 34) is worn
or damaged.
1) Remove and clean Check
Balls and Seats.
2) Reseal Ball on Seat.
3) Replace Piston Packing.
Press will not build
rated tonnage.
1) Pump Plunger Leather (Item 5) is
worn or damaged.
2) Check Ball (Item 2) is
contaminated.
3) Ball and Seat (Item 6) have poor
contact.
4) Piston Packing (Item 34) is worn
or damaged.
5) Gauge (Item 39) is defective.
1) Replace Pump Plunger
leather.
2) Remove and clean Check
Balls and Seats.
3) Reseal Ball on Seat.
4) Replace Piston Packing.
5) Replace Gauge.
Oil leaking from
pump plunger.
1) Pump Packing Nut (Item 9) is
loose.
2) Worn Packings.
1) Tighten Packing Nut.
2) Replace Pump Packings.
Oil leaking from
release valve rod.
1) Valve Rod Packing Nut (Item 16)
is Loose.
2) Packings (Item 34) are worn.
1) Tighten Packing Nut.
2) Replace Valve Packings.
Pump handle drifts
up.
1) Defective Check Ball (Item 2).
2) Defective Check Ball Spring (Item
6).
3) Clean Check Ball and
reseat.
4) Replace Spring.
Ram will not return.
1) Return Spring (Item 31)
damaged.
2) Piston (Item 32) is bent or
damaged.
3) Piston Packing (Item 33) is
defective.
1) Replace Spring.
2) Replace Piston.
3) Replace Piston Packing
*
If oil leaks from around ram but there is no pressure loss than the reservoir has been overfilled
