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4.2 Explaining Maintenance Levels
4.2.1 Maintenance Level 1 (ML-1)
ML-1
is the daily observation of the pump by the operator, which includes the following steps:
STEP 1) Checking for Product Leaks
A) Product leaks can occur around the pump housing due to a leaking pipe connection, or a worn and
brittle O-ring in the pump housing.
B) In case the seal water is cloudy, the mechanical seal has a leak and needs to be inspected by a
maintenance technician.
STEP 2) Check for Oil Leaks at the following positions:
A) Both Shaft Seal Rings in front of the Bearing Housing
(Pos. 2322).
B) The Shaft Seal Ring in the back of the Gear Housing
(Pos. 1010).
C) The Oil Level Sight Gauge at the Gear Housing (Pos.
2360).
D) Both Oil Plugs at the Gear Housing (Pos. 2233).
In case the operator notices oil leaks on the floor, a
maintenance technician needs to inspect the pump.
STEP 3) Check for Strange Noises
In case unusual noises occur, the pump needs to be stopped. A maintenance technician needs to inspect
the pump for:
A) Foreign material in the pump housing
B) Damaged mechanical seals
C) Damaged or mis-aligned motor coupling
D) Damage at the motor, failing motor bearings
PROCESSTEC INC. 2022
4. MAINTENANCE
Page 43
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