PREVOST GKN AXLES LIMITED KIRKSTALL DIVISION, Руководство по обслуживанию

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Section 16: SUPPLEMENT INFORMATION ON INDEPENDENT FRONT SUSPENSION (IFS)
16-9
Drag link end sockets are equipped with lubri-
cation fittings and should be lubricated as
directed in paragraph "2.10 LUBRICATION
FITTINGS" in this supplement.
2.5.1 Adjustment
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
position.
2. Center steering gear as previously ex-
plained in paragraph "2.3 Steering Link-
age Adjustment".
3. Remove cotter pin and stud from drag link
at bell crank. Locate centerline of vehicle
and center of relay rod. With center of
relay rod aligned with centerline of vehi-
cle, 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.
Note:
Do not change position of pitman arm.
Install stud nut and torque to 160 lbf•ft (217
N•m). Align nut with cotter pin slot (tighten)
and install a new cotter pin.
Torque mounting clamp bolt nut to 60-80 lbf•ft
(81-108 N•m), then test the adjustment. Front
wheels should turn from right to left extreme-
ties without noticeable binding at drag link
ends.
2.6 Bell Crank and Idler Arm
Bell crank and idler arm are equipped with
one lubrication fitting and should be lubricated
as directed in paragraph "2.10 LUBRICATION
FITTINGS" at the end of this Supplement.
2.6.1 Bell Crank and Idler Arm
Removal
Note:
Use a piece of wire to anchor loose
end of relay rod and tie rod in order to prevent
placing an excessive load on opposite socket
end.
1. Bell crank : Disconnect drag link, tie rod
and relay rod from bell crank by removing
cotter pins, stud nuts and washers from
ball studs. Separate socket assemblies
from the bell crank.
Idler arm : Remove cotter pins, nuts and
washers from ball studs connecting relay
rod and tie rod to idler arm. Separate
socket assemblies from idler arm.
2.
Remove nuts and washers from bolt at-
taching bell crank or idler arm mounting
bracket to vehicle understructure. Remove
bell crank or idler arm mounting bracket.
2.6.2 Bell crank or Idler Arm Ball
Joint Disassembly
1. Remove adjacent link assemblies from
bell crank or idler arm as previously de-
scribed.
2. Remove screws attaching the cap to the
bell crank or idler arm mounting bracket.
Remove the cap and o-ring (Fig. 8).
3. Remove the cotter pin, nut and tongue
washer. Remove bearings, grease seal,
bearing bushing and the bell crank or idler
arm from its mounting bracket stud (Fig.
8).
2.6.3 Bell Crank or Idler Arm Ball
Joint Reassembly
Note:
For bearing installation use tool
Prévost # 110684.
1. Install bearing bushing on bell crank or
idler arm mounting bracket stud.
2. Install bearing and grease seal in bell
crank or idler arm eye (Fig. 8).
Note :
Install grease seal according to figure
8. Grease must be able to exit the bell crank
or idler arm mechanism. For grease seal
installation use tool Prévost # 110683.
3. Install bell crank or idler arm on its mount-
ing bracket stud (Fig. 8).
4.