54 CHAPTER 3
Maintenance
Figure 78. Fully retracted packer
Two different types of steel are used
on packer guiding system:
• AR-425 type steel; and
• AR-500 type steel.
The sliding shoes are made of AR-425
type steel to wear out before floor
guides, which are made of AR-500.
Refer to the Parts Catalog for
replacement part numbers.
To keep the packer in good working
order and to prevent breakdowns,
replace the sliding shoes and wear
pads before extensive wear or damage
appears on the hopper floor and walls.
Sliding Shoes
Replacement
Note:It is not necessary to remove
the packer to perform this
procedure.
To replace the sliding shoe, apply
the following procedure:
1. Make sure the parking brake is
applied and the vehicle is tagged
out for maintenance purposes
(refer to “Lockout/Tagout
Procedure” on page 8);
2. Start the engine and engage the
hydraulic system;
3. Disable the speed-up system on
the console (Figure 79. “Main
console from right-hand side
driving position”) by pulling out
the
SPEED-UP INHIBITOR switch;
Figure 79. Main console from
right-hand side driving position
Sliding Shoe
Speed-Up
Inhibitor Switch
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