Relay Rod; Replacement; Tie Rods - PREVOST H3-41 Maintenance Manual

FIGURE 15: BELL CRANK
11. Unscrew nut until bell crank or idler arm
starts to turn with the application of 1 to 3 lbs
force load as shown on Figure 16.
12. Check for loose bearings by applying an up
and down load on bell crank or idler lever.
The lever is not supposed to move in the
vertical axis direction.
FIGURE 16: BELL CRANK
13. Align nut with cotter pin slot (tighten) and
install a new cotter pin.
NOTE
Bend cotter pin around the nut. Do not bend
the cotter pin in the direction of the cap as it
may interfere with the cap.
14. Install the cap.
15. Bell crank: Install drag link, tie rod and relay
rod as directed herein under each specific
subject.
16. Idler arm: Install hydraulic power cylinder,
tie rod and relay rod as directed herein
under each specific subject.
17. Adjust turning angle as previously directed
under paragraph "Turning Angle" and
check front end alignment as specified under
heading "Front End Alignment".
4.6
Relay rod ends are equipped with lubrication
fittings and should be lubricated as directed in
"Lubrication Fittings" in this section.
NOTE
The relay rod is crimped in place and it is not
possible to remove and replace the ball joint
socket end assemblies.
4.6.1
16044
1. Remove cotter pins from bell crank and idler
2. Use a puller or place a sledge hammer
3. Remove stud nuts then remove relay rod.
4. Position new relay rod studs into bell crank
5. Install stud nuts. Tighten nuts to prescribed
16045
4.7
Tie rod ends are connected to the bell crank and
left steering arm, and to the idler arm and right
steering arm. Each tie rod assembly consists of
three parts; a tube and two socket end
assemblies. The tie rod ends are threaded into
the tube and secured with clamp bolts. Right and
left hand threads are provided to ease toe-in
adjustment. Tie rod assemblies are inter-
changeable from the right to the left side of the
coach.
Tie rod end sockets require 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
PA1621 Maintenance Manual All Series | Section revised October 2018
SECTION 16 : SUSPENSION

RELAY ROD

Replacement

arm end of relay rod. Loosen nuts flush with
end of studs.
behind the adjacent part to absorb shocks.
Strike the studs with a brass hammer to
loosen end assemblies.
and idler arm then tap stud ends with a
brass hammer to seat tapered surfaces. Ball
stud and taper bore must be clean and free
of grease.
torque (refer to Torque Table 2). Align cotter
pin slot (tighten) and install a new cotter pin.

TIE RODS

tube for damaged threads. If tie rod is bent
27