TM 5-3805-280-10
Operating the Machine
ROCK DRILL ATTACHMENT (MODEL
230LCRD)
Rock drill operation subjects the machine's hydraulic
system to possible contamination and accelerated
deterioration. The hydraulic return filter and hydraulic oil
must be replaced more often to prevent damage to
hydraulic pumps and other hydraulic components. Change
the hydraulic return filter and oil at the intervals
recommended below based on the amount of machine
operating time the attachment is used.
Percentage of Operating Time
Hydraulic Return Filter
Hydraulic Oil Change
Rock Drill Used
Change Interval (Hours)
Interval (Hours)
100
100
600
60
150
800
40
200
1000
20
300
1300
TX,35,FF2664 1913MAY931/1
INSTALL ROCK DRILL
1. Ensure that rock drill is level and legs are resting on
ground.
NOTE: See Using Quick-Disconnect Hitch in this chapter
for additional information when performing steps 2
through 7.
2. Manually place hitch safety lock pin in unlocked
position.
3. Fully extend bucket cylinder and set quick-disconnect
switch in cab to unlatch position.
Continued on next page
CED,OUOESLH,6 1909DEC991/3
7-38