Labrie Pendpac WITTKE RETRO FL, Operator'S Manual

Page: 84 / 98

74 Operating the W
ITTKE
R
ETRO
F
L
TM
N
OTE
:
It is imperative that the ball valve be open whenever the engine is running. Even
though the
hydraulic pump is ‘off’, it is still pumping oil through the bypass line back to the reservoir.
Severe damage to the hydraulic pump will occur if it is operated with the ball
valve closed.
Oil Filtration
The hydraulic system in your W
ITTKE
R
ETRO
F
L
TM
front loader requires filtration for performance
and longevity. Excessive particle contaminants, over a period of time, will result in poor hydraulic
performance and component failure. The hydraulic system in your W
ITTKE
R
ETRO
F
L
TM
is protected
with one 5 micron return line filter, one 10 micron air filter, one 40 micron breather cap, one 100
mesh suction strainer and one magnetic drain plug.
Return Filter
The reservoir mounted return filter houses two (2) elements of 5 microns. These elements must be
changed after the first 50 hours of use. Thereafter, they must be replaced:
1. Whenever the filter gauge needle is in the red zone of the gauge, or
2. Whenever there is a major hydraulic component failure, or
3. Every 1000 hours.