Tag Axle; Suspension; I-Beam Axle Front Suspension; Drive Axle - PREVOST H3-45 2023 Operator's Manual

9-14 Technical Information
Tag axle may be unloaded to provide better
l
traction in snow, mud and reduce the turning
radius and tire scrub at low cornering speed

SUSPENSION

Goodyear rolling lobe type air springs (bellows)
are used throughout.

I-BEAM AXLE FRONT SUSPENSION

2 Bellows;
2 Shock absorbers;
4 Radius rods;
1 Transverse radius rod;
1 Height control valve;
1 sway bar;

DRIVE AXLE

4 Bellows;
4 Shock absorbers;
3 Radius rods;
1 Panhard rod;
2 Height control valves;
1 Anti-roll bar;

TAG AXLE

2 Bellows;
2 Shock absorbers;
3 Radius rods;
1 Panhard rod;

ALIGNMENT SPECIFICATIONS

Use static wheel alignment systems which work
with angle measurements only, such as Josam or
Hunter systems. Static alignment specifications
are listed in the following tables:
FRONT I-BEAM AXLE
Minimum
value
Nominal Maximum
value value
PA-1652 Operator's Manual H3-45 Coach
FRONT I-BEAM AXLE
Right
-0.25°
camber
Left
-0.25°
camber
Right
2.0°
caster
Left
2.0°
caster
Total
0.04°
toe
DRIVE AXLE - MERITOR
Minimum
value
Thrust
±0.11°
angle
0.18°
Total
toe
toe-in
DRIVE AXLE - ZF A132
Minimum
value
Thrust
angle
0.15°
Total
toe
toe-in
TAG AXLE
Minimum
value
Thrust
-0.02°
angle*
0.12°
Total
toe
toe-in
(*) Use the drive axle as reference
0.125° 0.375°
0.125° 0.375°
2.75° 3.5°
2.75° 3.5°
0.06° 0.08°
Nominal Maximum
value value
0.18°
0°
toe-out
Nominal Maximum
value value
±0.11°
0.15°
0°
toe-out
Nominal Maximum
value value
0 0.02°
0.02°
0°
toe-out