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11
M I S C . B A G
REMOVE THESE
PARTS FOR:
4015: step 1
MOUNTING REAR TIRES
Install both #3627 rear tires to the hubs
with three #6285 screws into each
wheel hub.
3656, qty 4
1/8 x 5/16
unflanged ball bearing
1:1
T O O L S U S E D
s t e p 1
4187
6299
3656
3656
chassis
3627
6285
MOUNTING FRONT TIRES
Put a # 3656 unflanged ball bearing into each side of the front wheels.
Place a #4187 washer over the axle, then slide the wheel on and secure it with a #6299 E-
clip. Install the other wheel the same way.
1:1
6285, qty 6
4-40 x1/4
steel
1:1
4187, qty 2
washer
1:1
6299, qty 2
E-clip
3627, qty 2
rear wheel/tire
3673, qty 2
front wheel/tire
S I D E V I E W S H O W N
T O P V I E W S H O W N
3/32"
3673 front tire
wheel rib
s t e p 2
DIFFERENTIAL ADJUSTMENT
While holding rear wheels with your hands, use your right thumb
and index finger to try and rotate the spur gear. The spur gear
should be very difficult to rotate. If you can rotate it easily, then
tighten the #4185 11/32" nut at the end of the axle, a little at a
time, until the spur gear is difficult to rotate.