Edwards EXS Series Instruction Manual page 63

Cause Distances between housing and rotors is too small due to distortion of the pump.
Remedy Affix and connect the pump free of tensions.
Cause Rotors make contact with the housing.
Remedy Contact us. Shut down the pump immediately.
Cause Rotor is running untrue.
Remedy Contact us. Shut down the pump immediately.
Cause Oil thrower disc makes contact with the gear housing.
Remedy Contact us.
Fault Pump is losing lubricant
Cause Oil level glasses leaky.
Remedy Contact us.
Cause Gear cover is leaky.
Remedy Replace the O-ring of the gear cover.
Cause Puddle under the motor, leak in the seal.
Remedy Shut down the pump immediately. Contact us.
Cause No lubricant leak is apparent.
Remedy See
.
Fault Oil gets too dark
Cause Oil has been used up.
Remedy Exchange the oil.
Cause Pump gets too hot.
Remedy See
Cause Lubricant level is too high.
Remedy Drain the lubricant down to the correct level.
Cause Lubricant is ejected from the system.
Remedy Check the system.
Cause Pump is not standing horizontally.
Remedy Place the pump correctly.
Cause Pump has a gas leak towards the outside.
Remedy Run a leak search and pinpoint leaks. If the leak is not at the oil‐fill plugs, return the
pump to the service.
A41870880_A
A41870880_A - Fault finding
Lubricant in the pump chamber
Pump gets too hot on page 61. After the remedy of the fault, exchange the oil.
on page 64.
Page 63 07/2021 - ©Edwards Limited