Manitowoc 14000 Service And Maintenance Manual

Reference Only
Manitowoc Published 09-10-14, Control # 065-24 8-3
14000 SERVICE MANUAL UNDER CARRIAGE
8
TURNTABLE BEARING INSTALLATION
The outer ring can be installed in any position with relation to
carbody.
Two dowel pins are installed in the inner ring as shown in
Figure 8-1
to locate the inner ring on the rotating bed.
TURNTABLE BEARING BOLT TORQUE
Torque Requirements
Lubrication
Before installing turntable bearing bolts, lubricate the
following with Never-Seez (MCC No. 361010) or an
equivalent antiseizing lubricant:
• Threads of each bolt
• Underside of head of each bolt
• Both sides of each washer
Torque Values
Torque each turntable bearing bolt to 2,100 ft-lb (2 848 Nm).
When new bolts are installed, torque bolts in two steps:
• FIRST to 600 ft-lb (814 Nm)
• SECOND to 2,100 ft-lb (2 848 Nm)
Torque Sequence
Torque two bolts at a time in the numbered sequence given
in Figure 8-1
.
Torque Intervals
INITIAL OPERATION: torque all bolts to specified value after
first 50 hours of operation.
YEARLY or every 2,000 hours of operation (whichever
comes first): torque all bolts to specified value.
Bolt Replacement
If at yearly inspection interval, one or more bolts are found to
be torqued to less than 1,680 ft-lb (2 278 Nm), replace each
loose bolt and washer. Also replace the bolts and washers
on each side of each loose bolt.
If at yearly inspection interval nine or more bolts in either ring
are found to be torqued to less than 1,680 ft-lb (2 278 Nm),
replace all of the bolts and washers for the corresponding
ring.
Replace all bolts and washers each time a new turntable
bearing is installed.
DANGER
Crushing Injury Hazard!
Two people are required to torque turntable bearing bolts:
an operator to operate swing control and a mechanic to
torque bolts.
Mechanic shall go inside rotating bed to torque inner
turntable bearing bolts.
• Maintain constant communication between operator
and mechanic while mechanic is inside rotating bed.
• Operator, do not swing upperworks until instructed to
do so by mechanic.
• Mechanic, stay well clear of moving parts while upper
is being swung to position bolts.
WARNING
Bolt Failure!
Loose or improperly torqued bolts can cause bolts or
turntable bearing to fail, possibly allowing upperworks to
break away from carbody.

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English