Drag Link; Adjustment; Bell Crank And Idler Arm; Bell Crank Or Idler Arm Removal - PREVOST H3-41 Maintenance Manual

Use a new nut if the previously removed nut
was punched.
CAUTION
Lock nut with sector shaft using a punch mark
into the groove, minimum depth 3/32 inch
(2.5mm) (see Figure 13).
FIGURE 13: FIXING NUT PUNCH MARK
3. Connect drag link to pitman arm. Ball stud
and taper bore must be clean and free of
grease. Install washers. Tighten nut (dry) as
per Torque Table 2. Advance nut to next
alignment cotter pin slot and install a new
cotter pin.
4.4

DRAG LINK

Drag link assembly consists of three parts; a
drag link and two end assemblies. Both end
assemblies are identical and they are retained
on the drag link with a clamp bolt and nut.
Stud nuts at the pitman arm and bell crank ends
of the drag link must be kept tight or hole at ball
stud end of drag link and hole in pitman arm may
become enlarged as a result of excessive
looseness. Subsequent tightening of stud nuts
may draw studs too far into holes and dust cover
parts may become damaged which can result in
component failure.
Drag link end sockets are equipped with
lubrication fittings and should be lubricated as
directed in "Lubrication Fittings" in this section.
NOTE
The drag link nominal length is 41 17/32 inch
(1055 mm) measured from the center of one
ball socket to the other. Nominal length is
given only for preliminary adjustment.
4.4.1
It should not be necessary to alter the length of
the drag link except when a new link is installed
or when removable end assembly has been
replaced. If drag link adjustment is necessary,
proceed as follows:
1. Position front wheels in straight ahead
2. Center steering gear as previously explained
3. Remove cotter pin, nut and stud from drag
NOTE
16098
Do not change position of pitman arm.
4. Install stud with nut and torque to proper
5. Torque
Clamp bolts are either in a vertical or
horizontal position. Reinstall clamp bolts
exactly as they were before removal as they
might interfere with other components.
4.5
Bell crank and idler arm are equipped with one
lubrication fitting and should be lubricated as
directed in "Lubrication Fittings" in this section.
4.5.1
NOTE
Use a piece of wire to support loosen end of
relay rod and tie rod in order to prevent placing
PA1621 Maintenance Manual All Series | Section revised October 2018
SECTION 16 : SUSPENSION

Adjustment

position.
in "Steering Linkage Installation Sequence".
link at bell crank. Locate centerline of vehicle
and center of relay rod. With center of relay
rod aligned with centerline of vehicle, loosen
clamp bolt at socket end (bell crank end) of
drag link and adjust length of socket end
assembly to fit in boss of bell crank.
torque. Ball stud and taper bore must be
clean and free of grease. Align nut with
cotter pin slot (tighten) and install a new
cotter pin.
mounting clamp
prescribed torque, then test the adjustment.
Front wheels should turn from full right to full
left end of stroke without noticeable binding
at drag link ends.
CAUTION

BELL CRANK AND IDLER ARM

Bell Crank or Idler Arm Removal

bolt nut to
25