Slewing Ring; Visual Check Of The Slewing Ring Connection; Lubricate Slewing Ring Gearing; Check The Slewing Ring Fastening Nuts - Manitowoc GHC75 Maintenance Instructions Manual

Crane Care

7.8 Slewing ring

7.8.1 Visual check of the slewing ring connection

Personnel
The machine operator

7.8.2 Lubricate slewing ring gearing

7.8.3 Check the slewing ring fastening nuts

Personnel
Service Technician
21.12.2017
Set the machine back down.
3.
Remove the suspension gear.
4.
Interval
Every 50 operating hours / weekly
Park the machine.
1.
2. Secure the machine against being restarted without authori-
zation.
Check the slewing ring connection for damage to the
3.
n
n
n
n
Lubricate the slewing ring gearing with the GROVE gear spray, or
via the optional slewing ring lubrication feature.
Interval
Annually / every 2000 OH
Once every 250 OH / approx. 4-6 weeks after commissioning
Protective equipment:
Special tool:
Park the machine.
1.
Secure the machine against being restarted without authori-
2.
zation.
Check all fastening nuts on the slewing gear with a torque
3.
wrench, width xx mm, on firm ground, and tighten if neces-
sary.
Preliminary
GHC75 Telescopic crane
Slewing ring > Check the slewing ring fastening nuts
threaded union,
gearing,
sealing lip,
and grease collar.
Protective clothing
n
Protective gloves
n
Safety shoes
n
Torque wrench, width xx mm
n
Tightening torque = xx Nm
undercarriage
71