JLG 26MRT Service Manual - Manual (Page 27)

SECTION 2 - PROCEDURES
3120892 – JLG Sizzor – 2-15
Axle Installation
1. Move the drive axle to its proper position beneath
the machine frame, then properly support the axle.
Install the four u-bolts and secure them in place with
the eight locknuts and washers. When drive axle is
properly secured, remove the axle supports.
2. Install the wheel and tire assemblies on the axle and
secure each assembly in place with five wheel nuts.
3. Remove the supports from the rear of the machine
and remove the chocks from the front wheels.
Wheel Bearings
NOTE: The drive axle contains two separate axle shafts.
The procedures in the following paragraphs pertain
to one axle shaft only. The procedures must be
repeated for the remaining axle shaft.
Removal
4. With the axle assembly secured in a suitable holding
fixture, remove the bolts and nuts securing the axle
shaft retainer to the axle housing.
5. Remove the axle shaft from the housing by pulling
on the shaft. It may be necessary to free the axle by
prying it loose with two screwdrivers or pry bars.
6. The bearing cup will normally stay in place in the
housing. Use a suitable puller (Dana part no. D-131)
to remove the bearing cup.
7. Using a suitable puller as in step 3, remove the inner
axle shaft seal. Discard the seal and replace it with a
new one at assembly.
NOTE: Avoid contacting seals with cleaning solvent during
the cleaning operation.
8. If the wheel bearings are to be re-used, proceed to
Cleaning and Inspection. If the wheel bearings are to
be replaced, proceed to step 6.
9. Place the axle shaft in a vise. Drill a 1/4 inch (6.4
mm) hole in the outside of the bearing retaining ring
to a depth approximately three-quarters of the thick-
ness of the ring. Do not drill all the way through the
ring; the drill could damage the axle shaft.
10. After drilling the ring, use a chisel positioned across
the hole and strike sharply to break the ring. Discard
the ring and replace it with a new one at the time of
assembly.
11. Push the axle shaft retainer and outer axle seal
toward the flange of the axle shaft.
12. Attach the flange plate (Dana part no. SP-5443-A) to
the axle shaft flange. Install bolts (Dana part no. SP-
5026) into the flange plate. Slide the adapter ring
(Dana part no. SP-5017) over the axle shaft. Install
removing adapters (Dana part no. SP-5442-D) so
that they seat under the cup rib ring.
13. Gradually tighten the bolts until they locate in the
dimples on the backside of the adapter ring. Tighten
the bolts alternately until the bearing cone is
removed from the axle shaft. Be careful not to mar
the machined surfaces of the axle shaft.
DO NOT HEAT OR CUT THE BEARING CONE ASSEMBLY WITH A
TORCH TO REMOVE IT. DAMAGE TO THE AXLE SHAFT WILL
RESULT.
14. Remove and discard the outer shaft seal; replace it
with a new seal at the time of assembly.
15. Remove the axle retainer plate and inspect it for pos-
sible distortion. If any portion of the retainer plate is
damaged, it should be replaced.