TM 5-3820-245-14&P
5-4. OPERATIONAL CYLINDERS TROUBLE SHOOTING (Continued)
CONDITION
PROBABLE CAUSE
REMEDY
Hydraulic oil
Normal packing wear.
Remove cable from sheave on
escaping from
top of polesetter extension.
polesetter
Disconnect both 12 inch
extension.
hydraulic hoses from bottom of
6 foot extension; pull forward
until gland is exposed. Tighten
packing gland nuts equal amount,
or until hydraulic flow is
sealed off. If adjustment has
been completely taken up,
repack using Chevron type
packing.
Leveling cylinder
Flow control valve
Adjust flow control valve
too slow or too fast.
not properly adjusted
mounted in lower port of
leveling cylinder.
5-5. DRIVE ASSEMBLY TROUBLE SHOOTING
CONDITION
PROBABLE CAUSE
REMEDY
Kelly bar will not
Damage to ring gear
Disassemble final drive at
rotate. and pinion assembly.
retainer rings on intermediate
housing. Slide final drive
assembly out until pinion
drive is free. Rotate pinion
assembly if kelly bar does not
turn. Damage is in final
drive assembly. Disassemble
according to disassembly pro-
cedure for final drive. Always
use ring gear and pinion
furnished by Reedrill, Inc.
Trouble not
A. Ring gear and
If key is not damaged, check
located in
pinion. Right
pinion teeth. Check ring gear
final drive.
angle drive.
teeth by rotating ring gear
carrier assembly and inspect
teeth through the pinion
carrier opening on right angle
housing.
PAGE 56
