NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 3-20
CHAPTER 2 MAINTENANCE
3 REMOVAL AND INSTALLATION
AUGUST 31, 2008
3. Install U-bolts over front axle and springs and install mounting plates,
washers, and nuts. Torque nuts to 105 ft-lbs.
4. Remove jack stands and jack from beneath axle and frame.
3.13 FRONT AXLE ASSEMBLY
3.13.1 Removal
1. To provide adequate working space under tractor, raise front of tractor with
jack so tires clear the ground and support tractor with appropriate jack
stands. Position stands so they do not interfere with axle removal.
2.
contamination. Tie brake lines to frame to prevent kinking, bending or
other damage.
3. At the drivers side, unhook the front brake hose from the tee that connects
it to the line from the equalizer valve and front cross over line.
4. Place a small container under the connections to catch spillage and caps
ends of open lines to prevent dirt from getting in.
5. At the passenger side, unhook the front brake hose from the front cross
over line.
6. Disconnect steering drag link from the steering arm on the axle. The
drag link is a rod that connects the steering gear unit pitman arm to the
left-hand front axle knuckle.
7. Position axle jack under front axle.
8. Remove nuts, washers, mounting plates and U-bolts attaching spring and
axle assembly to frame.
9. Lower axle jack until front axle clears frame and remove axle.
3.13.2 Disassembly
1. Remove cotter pins and caliper retaining bolts holding caliper to mounting
bracket and remove caliper. If necessary, loosen a bleeder to relieve
pressure (This will necessitate bleeding the brakes later.). Place a block
between the friction pads to secure the pistons.
2. Remove grease cap from hub.
3.
and brake disk. Protect bearings from contamination.
4. Remove brake disc from wheel hub, if necessary, by removing socket
head capscrews. Do not remove wheel studs unless replacement is
necessary.
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