Instruction Manual

Dake Corporation
1809 Industrial Park Dr
Grand Haven, MI 49417
www.dakecorp.com
14 REV122020
TROUBLESHOOTING
SYMPTOM
CAUSE
SOLUTION
Cylinder moves slow
Air in pump
Bleed the air
Air in circuit
Bleed the air
Damaged cylinder gaskets
Replace cylinder gaskets
Damaged or worn pump
Replace pump
Sequence valve jammed
Recondition sequence valve
Delivery oil line is choked or
clogged
Check hydraulic lines
Piston will not move
Electric motor will not turn
Check motor
Piston gaskets are completely
damaged
Replace piston gasket
Blocked distributor
Recondition distributor
Damaged pump
Recondition or replace pump
Cylinder leaks oil
Head gaskets are damaged or
worn
Replace head gaskets
Piston ram will not
build pressure
Lack of pressure from pump
Recondition pump
Pressure control valve is set low
Reset valve appropriately
Pump cavitation
Filter suction is clogged
Clean or replace
Oil is too viscous
Empty and refill with more suitable
oil
Foam forms in the
hydraulic fluid
Oil level is too low
Fill oil back up to correct level
Oil is unsuitable for the press
Replace with suitable oil
Fittings or joints letting air in
Tighten or replace fittings
Air is being discharged into circuit
Discharge air from system
Pumps deliver little
or no oil
Pump is worn or damaged
Recondition or replace
Pump will not turn
Pump joint is undone or damaged
Check and/or replace
Unstable valves
Valve seat damage
Recondition or replace
Pressure not constant
Check pump or pressure relief
valve