207
MAINTENANCE
Basic machine
OPERATION AND MAINTENANCE INSTRUCTION MANUAL
HBR204-MU-6-eng.doc
THIS DOCUMENT IS THE PROPERTY OF HÜETTE BOHRTECHNIK GMBH - TOTAL OR PARTIAL REPRODUCTION IS PROHIBITED
A4
250 HOURS
– CHANGING OIL OF HEAD MOVEMENT REDUCTION GEAR
1.
Place the mast in a horizontal position.
2.
Clean the plugs and the surface around the plugs (R1, R2, R3).
3.
Place a container under the drain hole (R3).
4.
Remove plugs R1, R2, R3 and drain out the oil. To make the operation easier, it is better
to work when the oil is warm.
The replaced oil must not be disposed of in the environment. It must be disposed of as
required by local laws.
5.
Clean the plug and put it back in place (R3).
6.
Fill oil via the filling hole (R1). Stop filling when oil starts coming out the level hole (R2).
7.
Clean and refit the plugs (R1, R2).
WARNING!
Danger of burns!
The reduction gear and the oil inside can reach high temperatures.
NOTE: Remember that when the gear motor is to work in a vertical position, the amount of oil
(brake and reduction gear) must be doubled with respect to the amount used in the horizontal
position.
6.21.1
A5
500 HOURS
– ADJUSTING THE VALVE CLEARANCE (DIESEL ENGINE)
For procedures, methods and warnings on this phase, refer to the enclosed manual for the
diesel engine