Tires; Wheel Mounting Procedure - Jacobsen 70528 Parts & Maintenance Manual

4 MAINTENANCE

4.19 TIRES ___________________________________________________________________

!
Unless you have the proper training tools and
experience, DO Not attempt to mount a tire on a rim.
Improper mounting can produce an explosion which may
result in serious injury.
1. Keep tires properly inflated to prolong tire life. Check
inflation pressure while the tires are cool. Inspect
tread wear.

4.20 WHEEL MOUNTING PROCEDURE____________________________________________

Tractor Wheels
!
WARNING
Make sure the tractor is parked on a solid and level
surface. Never work on a tractor that is supported only
by the jack. Always use jack stands.
If only the front or rear of the tractor is raised, place
chocks in front of and behind the wheels that are not
raised.
1. Remove dirt, grease and oil from stud thread. Do not
lubricate threads.
2. Position wheel on hub and inspect to insure full
contact between mounting surface of wheel and hub
or brake drum.
3. Finger tighten all hardware then torque hardware in
crisis-cross order; always tighten nuts in the top
position.
NOTE: Check and torque lug bolts daily for the first 100
hours of operation.
4. After recieving new unit or if tires were removed,
check and torque lug bolts daily until torque is
maintained, 65-75 ft.lbs. (88-102 Nm)
Caster Wheels
To extend bearing life check and adjust caster and gauge
wheels every year. Lubricate bearings every 100 hours
using NLGI Grade 2 grease.
1. Raise deck so wheels are off ground and can be
rotated freely by hand.
2. Check wheels for end play (I). Wheels should rotate
freely with zero end play.
3. To eliminate end play, tighten inner nut (G) until
wheel just begins to bind then loosen it 1/4 turn.
26
CAUTION
2. Check pressure yearly. Use an accurate, low
pressure tire gauge.
3. Keep tires inflated to proper pressure
Tractor: 20-22 psi (138 -152kPa).
Decks: 20-25 psi (138 -173 kPa)
Lock inner nut in position using outer nut (H). Do not
allow inner nut to rotate while tightening outer nut.
4. Repeat step 2 and check for end play.
I
G
H
HR021
Figure 4H