Chevrolet 70 1969 Series, Shop Manual

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STEERING 9-7
F ig u r e 1 3 — R e m o v in g S id e C o v e r N e e d le B e a r in g
shim. Four sizes of shims are available and can be pur­
chased in a kit.
LASH ADJUSTER REPLACEMENT
Type Steering Gear Shown in Figure 2
1. Lash adjuster retainer is tack-welded in end of Pit­
m an shaft (fig. 12). Break tack-weld and unscrew re­
tainer from shaft. Rem ove adjuster screw and thrust
washer.
2. Install new thrust washer and adjuster screw, lubricat­
ing end of adjuster with regular steering gear lubri­
cant.
3. Screw retainer in tight; then back off 30 degrees to
obtain correct adjustm ent. Tack weld retainer at
points shown in figure 12.
WORM BEARING CONE AND
CUP REPLACEMENT
Type Steering Gear Shown in Figure 2
1 If not previously removed, press w orm bearing cones
off worm shaft with remover plates (J-8176). Refer to
figure 5.
2. Use sam e tool and press new cones on shaft.
3. Use a suitable punch and ham m er, and drive bearing
cup from steering gear housing.
4. Position new bearing cup squarely over recess in
steering gear housing and press cup in, until it is firm ­
ly and evenly seated. Use old cup to press new cup
into place.
5. R epeat these procedures for top cover bearing cup re­
placement.
PITMAN SHAFT BEARING REPLACEMENT
Type Steering Gear Shown in Figure 2
1. Pull needle bearing from side cover, using puller tool
(J-3187-A) with slide h am m er (J-2619) (fig. 13).
2. Press or drive needle bearing or bearings from gear
housing, usina rem over and replacer tool ( J ’5529) (fie.
14).
3. Install bearings in both side cover and gear housing
with rem over and replacer tool (J ’5529). During in­
stallation, press only against stam ped identification
side of bearing.
ASSEMBLY OF STEERING GEAR
GENERAL
F ig u re 1 4 — R e m o v in g or in st a llin g N e e d le B e a r in g in H o u s in g
One of the m ost im portant phases when assem bling the
steering gear is cleanliness. All parts m ust be kept clean.
Any bits of abrasive m aterial which m ay get inside of the
housing during assem bly procedures will quickly dam age
the gear m echanism . G rease and oil used at assembly
m ust be free from dirt. W hen handling parts, m ake cer­
tain that hands are clean, and that clean cloths are used.
F ig u re 1 5 — FilSing Ball C ircu it in N u t
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK S H O P M A N U A L