
Part No. 237062
Z-45/25 Bi-Energy • Z-45/25J Bi-Energy
3 - 33
September 2015
Section 3 • Scheduled Maintenance Procedures
D-1
Check the Primary Boom
Wear Pads
Maintaining the boom wear pads in good condition
is essential to safe machine operation. Wear pads
are placed on boom tube surfaces to provide a low
friction, replaceable wear pad between moving
parts. Improperly shimmed wear pads or continued
use of extremely worn wear pads may result in
component damage and unsafe operating
conditions.
1 Measure each wear pad. Replace the wear pad
once it reaches the minimum allowable
thickness. If the wear pad is still within
specification, shim as necessary to obtain
minimum clearance with zero binding.
2 Extend and retract the primary boom through
the entire range of motion to check for tight
spots that may cause binding or scraping of the
boom.
Note: Always maintain squareness between the
outer and inner boom tubes.
Primary boom wear
pad specifications
New
Minimum
Top, bottom and side wear pads
3
/
4
inch
5
/
8
inch
(platform end of boom)
19 mm
15.9 mm
Side and bottom wear pads
5
/
8
inch
1
/
2
inch
(pivot end of boom)
15.9 mm
12.7 mm
Top wear pads
3
/
4
inch
5
/
8
inch
(pivot end of boom)
19 mm
15.9 mm
D-2
Check the Free-wheel
Configuration
Proper use of the free-wheel configuration is
essential to safe machine operation. The
free-wheel configuration is used primarily for
towing. A machine configured to free-wheel without
operator knowledge could result in death or serious
injury and property damage.
Collision hazard. Select a work
site that is firm and level.
Component damage hazard. If the
machine must be towed, do not
exceed 2 mph / 3.2 km/h.
1 Chock the steer wheels to prevent the machine
from rolling.
2 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive chassis
between the non-steer tires.
3 Lift the wheels off the ground and then place
jack stands under the drive chassis for support.
4 Disengage the drive hubs by turning over the
drive hub disconnect caps on each non-steer
wheel hub.
Checklist D Procedures
brake disengaged
position
brake engaged position
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