PREVOST X3-45 COMMUTER User Manual

SECTION 12: BRAKE AND AIR SYSTEM
40
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual Section 12 revised Jan 2021
FIGURE 35: TOLERANCES AND EXAMPLES OF CRACKS
AND GROOVES
16.2.3 Wear Check of Pad/Disc –Drive Axle –
Equipped With L-bracket Wear
Indicator
The condition of the pad/disc can quickly be
checked without removing the wheel by
checking the position of the caliper compared to
the tip of the wear indicator.
FIGURE 36: BRAKE PAD WEAR CHECK ON DRIVE AXLE
16.2.4 Wear Check of Pads/Disc – Front and
Tag Axle – Equipped With Visual Wear
Indicator
The condition of the pads can be checked
without removing the wheel by checking the
position of the caliper compared to the tip of the
wear indicator or carrier depending on vehicles.
In one variant of the visual wear indicator
(Figure 36), if the side of the caliper (flat surface
around guide pin cap) lines up with the tip of the
wear indicator (i.e. measurement A would be 0.0
in), the brake pad thickness and the brake disc
must be checked with the wheel removed. If any
minimal tolerance limits have been reached, the
pads and/or disc must be changed.
Alternately, brake pad wear can be checked
using carrier to caliper position. When points “P”
and “R” align the brake pad thickness and brake
disc must be checked with the wheels removed
(FIGURE 38). If any minimal tolerance limits
have been reached, the pads and/or disc must
be changed.
Refer to Knorr-Bremse Pneumatic Disc Brake
Y006471 Service.

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in