B - Before Operation
D - During
A- After Operation
Time required: 2 7
Time required:
Interval and
Sequence No.
ITEM TO BE INSPECTED
WORK
TIME
B
D
A
PROCEDURE
(M/H)
6
7
8
9
10
11
BOOM DRILL, CARRIAGE
Tighten all drill motor to boom bolts daily. Refer to
LO 5-3820-241-12 and lubricate the feed chain.
TRAMMING MOTORS
Remove drain plug and drain off excess water. Refer to
LO 5-3820-241-12 and check oil level. Add oil as required
TRACK SUSPENSION SYSTEM
Check the suspension system for proper adjustment or
other damage.Adjust track suspension as required (para 3-27).
ROCK DRILL RESERVOIR
Refer to LO .3820-241-12 and service the reservoir.
CENTRALIZER
Inspect the centralizer bushing for excessive wear.
If defective, refer to organizational maintenance.
DRILL BIT AND STRIKING BAR
Inspect the drill bit and striking bar for excessive
wear or damage. Replace If damaged (para 2-3).
0.2
0.3
0.5
0.2
0.1
Section III. OPERATOR/CREW TROUBLESHOOTING
3-5. General
a.
This section provides information useful to
the operator and crew in diagnosing and correcting
unsatisfactory operation or failure of the rock drill and its
components. Each malfunction for an individual
component, unit or system is followed by a list of tests or
inspections which will help you determine the probable
cause and the corrective action to take. Perform the
tests, inspections, and corrective action in the order
listed.
b.
This table does not list all functions that
may occur, nor all tests, inspections and corrective
actions. If a malfunction is not listed or is not corrected by
recommended corrective action notify organizational
maintenance personnel.
3-6.
Troubleshooting Table
Table
3-2
lists
the
operator/crew
troubleshooting
malfunctions, tests or inspection and the recommended
corrective actions.
Table 3-2. OPERATOR/CREW TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
ROCK DRILL AIR PRESSURE IS LOW.
Step 1.
Check for insufficient air from main air supply source.
Build up pressure in air supply source to 110 to 120 p.s.i.
Step 2.
Check for loose fittings or hoses.
Tighten hose and pipe fittings.
Step 3.
Check for plugged or defective air hose.
Notify organizational maintenance.
Step4.
Check air pressure regulator adjustment.
Adjust the air pressure regulator (para 3-13).
2.
LOW HYDRAULIC PRESSURE
Step 1.
Check for low hydraulic oil reservoir.
Refer to LO 5.3820-241-12 and service the hydraulic oil reservoir.
Step 2.
Check for loose hydraulic fittings.
Tighten hydraulic fittings.
Step 3.
Check for ruptured hydraulic hose.
Notify organizational maintenance.
Step 4.
Check adjustment of pressure regulator.
Adjust pressure regulator (para 3-13).
3-2
