Table 3-1. Operator Preventive Maintenance Checks and Services for Crawler-mounted Rock Drill
Location
Not Fully Mission
Item
Interval
Procedure
Item to
Capable if:
No.
Check/Service
Feed Mechanism
8
Before
Drill Steel
Clean, inspect, and lubricate.
9
Striker Bar
Before
Check striker bar for damage and exces-
Striker bar is exces-
sive wear. Both ends of striking bar must
sively worn or dam-
aged.
be flat and square, not chipped. Replace
if necessary.
10
Before
Check front cap for tightness. Do not run
Drifter Drill
Front cap is loose.
drill with a loose front cap.
Before
Feed chain broken or
Feed Chain
Visually check feed chain for breaks or
11
damaged.
damage.
12
Before
Feed Chain Sprockets
Visually check sprocket alinement. If
sprockets are not aligned, notify organi-
zational maintenance.
13
Before
Visually check feedshell for damage. Vi
Feedshell
sually check for wear that would inter-
fere with operation.
14
Before
Sprockets, Feed Chain Visually check for excessive accumula-
and Centralizer
tion of dust and debris that will interfere
with operation.
15
Before
Check for loose or missing nuts or bolts.
Mounting hardware
Mounting Hardware
Notify organizational maintenance if any
loose or missing.
nuts or bolts are loose or missing.
16
During
Sprockets, Feed Chain Visually check for excessive accumula-
tion of dust and debris that will interfere
and Centralizer
with operation.
Inspect air hoses for leaks, damage, or Leakage causes poor
During
17
Air Hoses
performance.
frays.
Check oil level in gearbox. Notify organi-
18
Weekly
Feed Motor Gearbox
zation maintenance if level is low.
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