MAINTENANCE
BG 25 / 2011 /
2254_BG25_en_0000498763_V01
9 - 24
9.9
WIRE ROPE ACCESSORIES
9.9.1
Rope Swivel
Every 10 operating hours or daily:
Apply grease to nipple (2) until grease exits from
the housing.
Test the swivel rotates freely.
Conduct the test by hand, without load sus-
pended to the swivel.
If the swivel will not rotate properly after it has
been greased, repair or replace it with a new
one.
Check tie bolts (1 and 3) are firmly in place. Re-
tension them as required, to the proper torque.
Replace tie bolts with new ones when they are
torn or have excessive play.
1
2
3
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CAUTION
Risk of damaging components!
Immediately
inspect the swivel for damage after an accidental drop of
the Kelly bar.
9.9.2
Rope Hold-Down Rollers
Every 50 operating hours or weekly:
Check rope hold-down rollers for wear and proper
function.
Check the roller is parallel to the drum of the
winch.
Check the roller mounting bolts are properly in
place and firm.
Adjust at tension screws until all springs are
equal. Do not tension worn out springs too much
but replace them with new ones.
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Re-align protecting bars that are bent, or replace them with new ones.
If there is excessive play, replace the roller centre pin, bushings and spacers re-
spectively with new ones.
If grooves have been created in a roller, reface the roller (by turning it on a lathe), or
replace it with a new one. Mind that a refaced roller will have a diminished diameter
so that the respective tension springs will have to be pre-tensioned correspondingly.
