Blohm + Voss Oil Tools 9G-3570AIR, Technical Documentation Manual

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OP
ER
AT
ION
20
Problem: Cause: Solution:
Air motor lacks
lubrication. Place several drops of SAE 10
non-detergent oil directly in motor supply
ports; restart.
Air motor failure. Remove air motor and install motor
repair kit or replace.
Motor mount loose
on case, allowing
chain to bunch and
lock. Disconnect air supply line. Loosen
capscrews on motor mount and move
it as far back as possible. Straighten
chain and tighten. If chain has become
stretched, remove one link and/or
replace chain.
Bearing failure in
drive chain. Check drive roller bearings and idler
sprocket bearing; remove and replace as
necessary.
Drive rollers slip on drill
pipe. Oily or greasy drive
rollers. Wash with rigwash soap and water.
Door pins in forward
holes for large
diameter drill pipe. Move door pins to rear position. See
(Installation Section).
Pressure rollers
seized. Repair or replace if necessary.
Drive rollers are
worn. Remove and inspect replace as
necessary.
Faulty door valve. Remove valve and install repair kit.
Unusual or uneven wear
on pressure and / or drive
roller. Drive roller bearing
failure. Replace bearings in drive roller bearing
housing.
Bearing failure in
pressure roller. Replace bearings.
Spinner not hanging
level. Level spinner with balancing screw.