PREVOST X3-45 COMMUTER User Manual

SECTION 14: STEERING
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
15
CAUTION
To prevent the steering damper from
interfering with the adjustment of turning
angles on vehicles equipped with I-Beam axle,
make sure its fixing bracket is at correct
location on the axle (refer to paragraph 13.5
"Steering Stabilizer Cylinder (Damper)).
CAUTION
Never maintain the relief pressur
e for more
than 5 seconds, since damage to the power
steering pump may occur.
CAUTION
Reduce or shut off the power steering
hydraulic pressure before the boss on the
knuckle
touches the stop screw. If not, the
components of the front axle will be damaged
(refer to "ZF-
SERVOCOM Repair Manual"
and “RB Robert Bosch Servocom - Service
Manual (8090)”
, found on your Technical
Publications USB flash drive, under heading
"Setting The Steering Limiter" or “Setting the
hydraulic steering limitation”).
10 STEERING LINKAGE ADJUSTMENT
Steering linkage pivot points should be checked
each time they are lubricated. Looseness can be
visually detected while rotating the steering
wheel in both directions. Replace defective
parts.
The steering linkage includes the pitman arm,
drag link, steering arm, tie rod arms and tie rod.
CAUTION
Front wheel alignment should be checked
and adjusted if necessary, any time a
component of the steering system is repaired,
disassembled or adjusted. Refer to section
10 "Front Axle" under heading
6. "Front
Wheel Alignment".
11 PITM AN ARM
11.1 REMOVAL
1. Remove cotter pin, nut and washers from
drag link ball stud at pitman arm.
2. Disconnect drag link from pitman arm, using
jaw style pullers (pressure screw type).
WARNING
Always wear approved e
ye protection when
operating pullers.
CAUTION
Do not drive (hammer in) pitman arm on or off
pitman shaft as this can damage the steering
gear.
CAUTION
Heating of components to aid in disassembly
is not allowed because it has a detrimental
effec
t on axle components and steering
linkages.
3. Using a cold chisel, undo punch mark that
locks fixing nut to the pitman arm.
4. Remove pitman arm fixing nut.
5. Check the radial position of the pitman arm
in relation to the sector shaft prior to removal
of pitman arm.

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