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3-1 8
1 9 7 7 PONTIAC SERVICE MANUAL
Vibration only
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Start with
p
Waddle, or Vibration and Waddle.
.
.Start with
1
STEP
SEQUENCE
RESULT
ADJUST TIRES TO
RECOMMENDED
L
PRESSURE
NO VIBRATION
VIBRATION
BA L A N C E ~ L L TIRES
(BALANCE WILL NOT AFFECT WADDLE)
, - - 5 5 -
FOR CHECKING
DRIVE WHEELS,
SHIFT TO NEUTRAL
IGNITION LOCK. WHEELS I N
STRAIGHT-AHEAD POSITION.
FOR FRONT WHEEL DRIVE
/ ' w
A IL/
SHIFT TO NEUTRAL AND
BRACE STFFRING WHEEL
NOTE
CENTER TPD
PLACE STAND UNDER
UNDER TIRE
OPPOSITE TIRE
SAME HEIGHT AS TPD
ON CARS WITH LIMITED SLIP
DIFFERENTIAL, MOVE DRIVE
TIRES TO FRONT OF THE CAR
-
TIRES MUST ROTATE:
RIGHT SIDE - CLOCKWISE
LEFT SIDE
-
COUNTER CLOCKWISE
L F
RF
LR
RR
1. MAKE CHART
RADIAL (UP AND DOWN)
R
DOWN MOTION USING PI LOT
2. START TPD ROTATING
Fig.
3-1 7
Tire Diagnosis
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