
LRV-1 lift control valve
6 Maintenance
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300-I-9010050-E-28/02.2012
6
Maintenance
6.1
Maintenance schedule
This service plan is just a guide. Adjustments or changes should be un
dertaken by the installer.
Work to be carried out
Time
Before commissioning
During commissioning
First service after
commi-ssioning, not
later than after 3 months
At every service, at
least 2x per year
Annually
After 5 years
After 10 years
Valve
Check internal leakage
X
X
X
Check external leakage
X
X
X
Check the maximum pressure setting
(pressure relief valve/ maximum-pressure
setscrew)
X
X
Check mechanical zero point (Hall sensor)
X
X
X
Clean in the proper manner or replace pilot
filters
X
X
X
Clean main filter
X –– X
Valve
Renew O-rings
(when valve is dismantled, or as required)
X –– X
Pipe
Hose
Check for leakage
X
X
X
X
Check for
S
Damage to the outer surface (chafings,
cracks, cuts)
S
Embrittlement of the outer surface
S
Discolouration of the outer surface
S
Bubbles
S
Pinches
S
Kinks
S
Damaged/ deformed fittings
X
X
X
Replace
X