PREVOST X3-45 Multiplex, Руководство по обслуживанию

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Section 16: SUSPENSION
PA1562
17
Tie rod end sockets require no maintenance
other than periodic lubrication and inspection to
see that ball studs are tight. Replace socket
ends when there is excessive up and down
motion, lost motion or end play at ball end of
stud.
1. Periodically check bolt nut for tightness.
2. Inspect tie rod for bent condition and inspect
tube for damaged threads. If tie rod is bent
or threads are damaged, replace the
assembly.
3. Lubricate tie rod end fittings as directed in
paragraph "3.11 Lubrication Fittings" of this
section.
3.9.1 Removal
1. Remove cotter pins and stud nuts which
attach tie rod socket ends to bell crank and
left steering arm (or idler arm) and right
steering arm.
2. Remove tie rod ball stud by tapping on
steering arm and bell crank or idler arm with
hammer, while using a sledge hammer to
absorb shocks.
NOTE
If tie rod end assemblies are damaged in any
way, they must be replaced
3.9.2 Installation
1. Install socket end assemblies on tie rod. Be
sure both ends are threaded an equal
distance into the tube.
2. Make sure threads on stud and in stud nut
are clean and not damaged.
3. Position ball studs (socket ends of tie rod) in
holes in steering arm and bell crank or idler
arm. Install a ball stud nut on each stud and
tighten firmly.
4. Torque stud nuts to 160 lbf-ft (220 Nm).
Align cotter pin slot (tighten) and install a
new cotter pin.
NOTE
Adjust toe-in as directed in paragraph "3.16.4
Toe-In Adjustment" of this section.
5. Make sure tie rod ends are properly aligned
with ball studs, then torque tie rod end
clamp bolts to 40-60 lbf-ft (55-80 Nm).
NOTE
If tie rod is not properly aligned with stud,
binding will result.
3.10 STEERING ARMS
The left and right wheel steering arms are
secured to a swivel at one end and to a tie rod at
the other end.
3.10.1 Removal
1. Remove wheel as directed in Section 13,
"Wheel, Hubs and Tires" of the maintenance
manual.
2. Remove cotter pin, washer and nut from
stud securing tie rod to steering arm.
Remove ball stud from steering arm by
tapping on arm with a hammer, placing a
sledge hammer underneath steering arm to
absorb shocks.
3. Remove cotter pin and nut securing steering
arm to swivel assembly. Remove steering
arm from swivel.
3.10.2 Installation
1. Insert steering arm in swivel.
2. Torque steering arm to swivel nut to 190 lbf-
ft (260 Nm). Align cotter pin slot (tighten)
and install a new cotter pin.
3. Position tie rod ball stud in steering arm and
tap with a brass hammer to seat ball stud in
steering arm. Install washer and nut on stud.
Torque nut to 160 lbf-ft (220 Nm). Tighten
nut to nearest cotter pin slot and install a
new cotter pin.
4. Install wheel as directed in Section 13,
"Wheel, Hubs and Tires" under paragraph
"2.3 Installation" of the maintenance manual.
3.11 LUBRICATION FITTINGS
All lubrication fittings must be clean before
applying lubricant. Also, always be sure
equipment used in applying lubricant is clean.
Every precaution should be taken to prevent
entry of dirt, grit, lint or other foreign matter into
lubricant containers. Replace fitting when they
become broken or damaged.
Intervals of application given in the following
paragraphs are recommended for normal
service. More frequent intervals may be applied
under severe operating conditions. In selecting
proper lubricants, supplier reputation must be
considered. The supplier must be responsible
for product quality. The diagram (Fig. 22) shows
approximate location of steering lubrication
fittings.