MacDon M1240, Operator'S Manual

Page: 359 / 488

MAINTENANCE AND SERVICING
Installing Drive Wheels
NOTE:
Windrower must be supported off the ground with stands.
Refer to
Raising Drive Wheels, page 345 .
1. Clean mount surface on wheel drive and rim.
2. Position drive wheel (A) against the wheel drive
hub (B) so the air valve (C) is on the outside and the
tire tread (D) points forward with the windrower in
cab-forward orientation.
NOTE:
For turf tires (diamond tread pattern), be sure
arrow on sidewall points in forward rotation with
windrower in cab-forward mode.
Figure 5.186: Drive Wheel Assembly
CAUTION
Use a lifting device capable of supporting a minimum
of 907 kg (2000 lb.) to lift the wheel assembly.
3. Lift wheel onto hub using a lifting device.
4. Lower lifting device.
5. Line up the holes in the rim with the studs on the wheel
drive hub and install wheel nuts (A).
IMPORTANT:
To avoid damage to wheel rims and studs,
tighten nuts by hand. Threads must be clean
and dry. Do
NOT apply lubricant or anti-seize
compound. Do NOT use an impact gun. Do
NOT overtighten the wheel nuts.
6. Torque drive wheel nuts. Refer to 5.5.1 Tightening
Drive Wheel Nuts, page 249 .
7. Repeat tightening sequence two additional times,
ensuring the speci fi ed torque is achieved each time.
8. Lower the windrower. Remove the jack. Refer to
Lowering Drive Wheels, page 348 .
9. Repeat torque procedure every hour of operation
until two consecutive checks con fi rm that there is no
movement of the nuts.
Figure 5.187: Drive Wheel Nuts
214053
347
Revision A