Blohm + Voss Oil Tools FloorHand 9GF-1102, Technical Documentation Manual

Page: 41 / 105

41
OP
ER
AT
ION
S
41
OP
ER
AT
ION
S
Problem: Upper wrench slips when making or breaking a
connection.
Troubleshooting
No No
No
No
No
No
START
Is there 2,500 psi
present at the wrench
system pressure gauge?
Is there 2,500 psi present
at H.P.U output?
Note: It is required that
the Floorhand have an
independent hpu for
proper operation.
Adjust/Repair
HPU for 2,500 psi
output.
Are the tong dies in good
condition?
Check that quick
disconnects. Are other
tools connected to the
hydraulic system?
Make sure all
operators understand
correct operation of
FloorHand.
Other tools in the
system can cause
intermittent loss of
pressure resulting in
slippage.
Is the operator
allowing time for the
dies to bite into the tool
joint before operating
torque cycle?
Allow a good bite
prior to making up
or breaking out.
When breaking out,
the operator should
manually start break out
slowly and when connection
breaks, finish at full break
out speed.
Contact Blohm + Voss Service.
Does the problem persist?
Change dies, stay clear
of the hardband.
Good
Yes
Yes
Yes
Yes
Yes