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

Page: 19 / 71

OP
ER
AT
ION
19
Problem: Cause: Solution:
Spinner does not clamp or
clamps slowly on drill pipe
(or unclamp). Lack of air pressure. Air supply should be 100-125 psi @240
CFM.
Air hose, both supply and cylinder hoses
are free, not pinched and without leaks.
Check all connections for leaks or
restrictions.
Check Filter, clean and drain as required.
Check lubricator level
(SAE 10 non-detergent oil).
Fault door valve. Remove valve and install valve repair kit
or replace valve.
Air leaking across
cylinder piston. Remove and install cylinder repair kit.
Door valve exhaust
blocked. Check for obstruction blocking the door
valve exhaust port. Remove and clean.
Air motor does not
operate or
operates slowly. Lack of air pressure. See above solutions under
“Lack of Air Pressure”
Check quick disconnects at air
motor for both supply and
exhaust.
Exhaust mufflers
clogged.
Remove and clean or replace.
Troubleshooting