Front Axle
Page 28
B0-248; B0-254; BT-248; BT-280 (36v & 48v)
MB-248-18
INSPECT FRONT WHEEL
BEARINGS
1: Raise the front of the vehicle and support with
jack stands.
2: Grab the top and bottom
of the tire/wheel assembly.
Feel for any movement
or play while pulling and
pushing on the top and
bottom of the tire. Any
movement or play is
indication of loose wheel
bearings.
3: Spin the front wheel(s) by hand. The wheel
should stop spinning in no more than
2-revolutions. A wheel that continues to spin
freely is an indication of a loose wheel bearing.
Note: Refer to the Adjust Front Wheel Bearings
section for detailed information regarding the
proper adjustment of the wheel bearings.
4: Spin the wheel(s) and listen for any grinding
noise. Any noise may be an indication of worn or
damaged wheel bearings.
Note: Refer to the Replace Front Wheel Bearings
section for information regarding the
replacement of the wheel bearings.
5: Lower the vehicle.
6: Reconnect the batteries.
7: Remove the blocks from behind the wheels.
8: Release the park brake and test drive the vehicle.
ADJUST FRONT WHEEL BEARINGS
•
The bearings must be lubricated before performing
this procedure.
1: Raise the front wheel(s) off of the ground and
support with jack stands.
2:
While rotating the wheel
, tighten the front axle
nut until the wheel is difficult to rotate.
3: Continue to rotate the wheel for 5 compete
revolutions.
4: Attach a rope to the tire and wrap around the tire
with 1 foot remaining hanging in the air.
5: Tie a weight (see table and illustration below) to
the end of the rope.
6: Slowly loosen the axle
nut until the hanging
weight rotates the
wheel then rotate to
the nearest flat and
install a new cotter pin.
7: Remove the rope and
weight.
8: Spin the wheel and listen for any grinding noise.
Any grinding noise may be an indication of worn
or damaged wheel bearings.
Note: Refer to the Replace Front Wheel Bearings
section for information regarding the
replacement of the wheel bearings.
9: Lower the vehicle.
10: Reconnect the main positive and negative cables
at the batteries.
11: Remove the blocks from behind the wheels.
12: Release the park brake and test drive the vehicle.
Tire Size
Weight NEW
(pounds / kg)
Weight USED
(pounds / kg)
4.80 x 8
2.15 / 0.975
1.00 / 0.454
5.70 x 8/
1.99 / 0.902
0.93 / 0.422
4.00 x 8
2.15 / 0.975
1.01 / 0.485
500 x 8
1.99 / 0.902
0.93 / 0.422
8.50 x 8
2.02 / 0.916
0.94 / 0.426
8 x 2.50
4.23 / 1.919
1.97 / 0.894
10 x 3.5
3.38 / 1.533
1.56 / 0.708
NEW: Weight = 16.931 / Radius
USED: Weight = 7.875 / Radius
3-Wheel vehicle front fork shown for illustration
purposes only
WARNING
This section is one section of a complete service
manual. Before starting any procedure, read all
warnings and instructions that are located in the
Service Guidelines chapter.
WARNING
This section is one section of a complete service
manual. Before starting any procedure, read all
warnings and instructions that are located in the
Service Guidelines chapter.
Summary of Contents for B0-248-36
Page 6: ...Notes...
Page 12: ...Notes...
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Page 24: ...Notes...
Page 52: ...Notes...
Page 60: ...Notes...
Page 70: ...Notes...
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Page 94: ...Replacement Parts Page 94 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v AXLE ASSEMBLY FRONT...
Page 124: ...Replacement Parts Page 124 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v Fiberglass Cab...
Page 126: ...Replacement Parts Page 126 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v Dump Bed...
Page 134: ...Replacement Parts Page 134 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v MOTOR...
Page 138: ...Replacement Parts Page 138 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v...
Page 140: ...Replacement Parts Page 140 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v STEERING GEAR...
Page 142: ...Replacement Parts Page 142 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v STEERING LINKAGE...
Page 146: ...Replacement Parts Page 146 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v SUSPENSION REAR...
Page 148: ...Replacement Parts Page 148 MB 248 18 B0 248 B0 254 BT 248 BT 280 36v 48v WHEELS AND TIRES...