Pneumohydraulic controller HP 036./HP 037.
Page 14/16 BEA--206006-EN-04
7. Maintenance
Venting screw
Air intake filter
Hexagon socket head screws
Hexagon socket head screws
Controller assembly
The air intake filter should be renewed at regular intervals depending
on the amount of dust in the ambient air.
Check regulary that the hydraulic fluid and pipe connections are tight.
The level and purity of the hydraulic fluid must be checked regular
-
ly. The purity of the hydraulic fluid can be checked by a simple test.
Using a clean screwdriver, sprinkle a little fluid onto a piece of white,
absorbent paper. If a deep brown coloured spot, metallic scuff or
other soiling appears in the center of the stain, the fluid should be
changed.
The fluid
must
be changed after approx. 6000 operating hours or at
least once a year. The fluid should only be changed at operating tem
-
perature.
Once the controller is switched off, the hydraulic fluid is drained off by
opening the venting screw. To check the fluid intake filter and filter in
-
sert, the whole controller assembly must be unscrewed from the fluid
tank. Once the 12 hexagon socket head screws have been removed
(see fig. below), the assembly can be removed.
7.1 Controller HP 03..
