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

Page: 42 / 105

42
OP
ER
AT
ION
S
42
OP
ER
AT
ION
S
No
No
No
No
No
No
No
No
Replace Dies
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Problem: Lower wrench slips when making or breaking
connections.
Is there 2,500 psi present
at H.P.U output?
Does the problem persist?
Check quick
connections. Are
there other tools connected
to the hydraulic
system?
Continue with the
operation. Make
sure all operators
understand the correct
operation of the
FloorHand.
Is there 2,500 psi
present at wrench system
pressure gauge?
When breaking
out,operator should
manually start break out
slowly. When connection
breaks, finish at full break
out speed.
Allow time for good
die penetration.
Are tong dies in good
condition?
Is operator
allowing time for dies
to bite into the tool joint
before operating torque
cycle?
Adjust/Repair H.P.U for
2,500 psi output.
Other tools in the system
can cause an intermittent
loss of pressure resulting
in slippage.
Adjust the PRV for 500 to
700 psi.
Note: It is required that
the Floorhand have an
independent hpu for proper
operation.
Check the lower wrench
clamp boost line for
blockage. Also, check for
proper installation of the
PRV shuttle valve.
Now clamp the top
wrench. Does the lower
wrench pressure jump to
2,500 psi?
See
Note
Install a pressure
test GAUGE on the
lower wrench cylinder
clamp port. Clamp the
lower wrench, does the
pressure equal 500 to
700 psi?
START
Contact
Blohm + Voss
Service.
Contact
Blohm + Voss
Service.