MAINTENANCE
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9.10.6
Kelly Driver and Guide Flange
9.10.6.1 Checking the Mounting Bolts
Every 50 operating hours or weekly:
Visually,
check mounting bolts of Kelly driver and
guide flange (1 and 2) are properly in place and
firm.
1
2
Kj248505.wmf
CAUTION
Risk of damaging the drive!
Do not re-tension these bolts unless ne-
cessary or the Loctite seal of the bolts
will break making the bolts loosen during
operation. Check visually only.
Unscrew mounting bolts found to be loose, clean
them and apply Loctite to threads, reinstall and ten-
sion the bolts with the specified torque (see below).
Bolt torque value
M
a
[Nm]
Kelly driver mounting (1)
Hex socket head bolts
see Spare Parts List
Guide flange mounting (2)
Hex head bolts
see Spare Parts List
Set screws with nut
see Spare Parts List
Replacing the Kelly Driver and/or Guide Flange:
Clean contacting surfaces of the hollow shaft and the Kelly driver / guide flange free
of grease. Apply Loctite 0586 Type AVX on the cleaned surfaces.
Apply Loctite to threads of the mounting bolts, and screw the bolts down with the
specified torque in a diagonal manner.