6.6
MAINTENANCE AND PERIODIC INSPECTIONS ALH and ALHS SERIES.
1
Pump hose replacement.
In prevention, change the pump hose after
90 % of the life time of the first hose.
see §6,3
2
Lubricant replacement.
At the end of two hose changes or 5000
hours of functioning. Otherwise, in every
hose break.
see §6,1
3
Gearbox oil replacement.
Refer to the gearbox maintenance manual
provided with the pump.
4
Replacement of the seal ring REF27.
In case of presence of lubricant in the leak
channel.
see §6,4,2
5
Replacement of the shaft seal REF26.
In case of presence of lubricant in the leak
channel.
see §6,4,2
6
Replacement of the shaft seal REF105 and
REF106 (ALHS series).
In case of presence of oil in the leak chan-
nel or at the lip seals.
see §6,4,2 and §6,6
7
Replacement of the shoes.
If these are worn on the contact surface.
see §6,4,1
8
Replacement of the cover seal REF10.
In the case of a leak around the pump
cover.
see §6.3.2
8
Replacement of the sleeves REF6.
If these are damaged.
Refer to §6,3. Perform operations
1, 2, 3 and 4 of §6,3,1 and change
sleeves. Respect directives of
security.
9
Replacement of the bearings REF103 and
REF104 (ALHS series)
If there are abnormal noises coming from
the bearing case.
see §6,4 and §6,6
9
Check the lubricant level.
Before starting the pump and periodically
during the pump service.
see §6,1
10
Check for lubricant leakage at the leakage
channel.
Before starting the pump and periodically
during the pump service.
see §6,4
11
Check the pump casing to discern possible
leakages around the cover, the sight glass,
the flanges and the sleeves.
Before starting the pump and periodically
during the pump service.
12
Check for wear on the shoe’s pressing sur-
face.
At every hose change.
see §6,4
13
Check the presence of a gearbox oil leakage. Before starting the pump and periodically
during the pump service.
see §3.5
14
Check for strange noises coming from the
pump, gearbox and bearing case or abnormal
pump casing temperature.
Periodically during the pump service.
