D60x90 Navigator HDD Maintenance
10 Service Hours or Daily 20-9
R
OTATION
G
EARBOX
O
IL
- C
HECK
Maintain oil level at sight gauge
(1)
. Fill at plug
(2)
on other side of gearbox. Refer to
Capacity is 6 qt (5.7 L).
D
RILL
R
OD
C
ARE
AND
I
NSPECTION
•
Do not exceed bend radius of the drill rod.
•
Do not over-torque or under-torque drill
rods. Doing so will cause premature failure
of the drill rod.
•
Move leading rod to back of rod box after
each job to prevent excessive wear on the
lead rod.
•
Inspect drill rod before and during each
use.
•
Remove any rod from drill string with damaged or worn ends.
•
Remove any rod from drill string that are bent.
•
Use proper thread or profile gauge to check for damaged thread.
•
After rods are coupled together, check for fluid leakage at the joint.
•
Leaking drill rod joints indicate damaged shoulders, which will not torque properly.
•
Check shoulders for dents, gouges, or high spots.
•
Dress damaged shoulders with a file.
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