Farr KT5500 Technical Manual page 70

KT5500 5- " T & CLInCHER® B
1
/
ong
2
Perform a full functional test of the equipment including, if applicable, backup components and float frame components.
20.
Report and correct any hydraulic leaks from the hydraulic valve bank, or from any hydraulic cylinders that are used.
If using a frame-mounted tong and backup system, raise the tong off the beams that it is resting upon. Remove the beams
21.
and protective cloths - inspect the paint on top of the backup and the bottom of the tong to ensure it has not been dam-
aged by the beam.
Test safety door feature (if equipped). Open the tong door(s), and attempt to rotate the cage plate at low speed (low gear)
in both directions (makeup and breakout). If cage plate begins rotating, the safety door mechanism is not functional, and
22.
the tong must be removed from service until the safety door mechanism can be repaired. If the safety door is operating
correctly, cage plate rotation will not be inhibited once the door is closed and latched.
NEVER OPERATE YOUR EQUIPMENT WITH A BYPASSED OR MALFUNCTIONING SAFETY
DOOR
While rotating the cage plate, ensure that the jaws properly cam. If the jaws do not cam properly, the brake bands
23.
need to be tightened. Incrementally adjust both the top and bottom brake bands EQUALLY until proper cam action is
achieved.
24.
When all of the previous steps are completed, you may return your re-commissioned equipment to service.
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