If the red button of the contamination
indicator jumps out during cold starts
(below 27
C operating temperature), the
indicator is faulty and must be replaced.
If the button jumps out after normal
operating temperature is reached
(approx. 50
C), the filter element is
contaminated and must be replaced.
65
07/2004
KR 806 - 2 / Serial No. 64004
6.4
Hydraulics
6.4.1
Hydraulic oil
Optimum transmission can be only assured, if operating temperature, viscosity and
quality are right.
for detales see ”Recommanded Oils and Lubricants” - page 52.
Old oil, or oils having been subjected to temperatures in excess of 70
C lose
important operating characteristics and reduce the service life of seals, hoses,
pumps and cylinders.
6.4.2
Filtration
Check the filter contamination indicator daily, as soon as the fluid
has reached a temperature of approx. 20
- 30
C.
Observe the visual indicator:
- Red button on supply line filter for hydraulic drifter
- Pressure gauge (red - greenfield) on return line filter
Filter Cartridges
Be sure to use only tested and approved cartridges.
a)
HP- Filter - 3
µ
m in the percussion mechanism supply line
b)
LP - Filter - 10
µ
m for the return line
PLEASE NOTE