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Figure 49
1. Spring washers
2. Lock nut
Wheel Hub Slotted Nut
Check after every 500 operating hours.
The slotted nut needs to be torqued to 125 ft.-lb.
(169.5 N m).
1. Disengage the PTO, move the motion control levers to
the neutral locked position and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove cotter pin.
4. Torque slotted nut to 125 ft.-lb. (169.5 N m) (Fig. 50).
5. Check the distance from bottom of slot in nut to inside
edge of hole. Two threads or less should be showing
(Fig. 50).
6. If more than two threads are showing remove nut and
install washer between hub and nut (Fig. 50).
7. Torque the slotted nut to 125 ft.-lb. (169.5 N m)
(Fig. 50).
8. Tighten nut until the next set of slots line up with the
hole in the shaft (Fig. 50).
9. Replace cotter pin.
3
2
1
M–4640
3. Dust cap
40
4
5
2
Figure 50
1. Slotted nut
2. Two threads or less
showing
Servicing the Hydraulic
System
Checking the Hydraulic Fluid
Check the hydraulic fluid level:
Before the engine is first started.
After the first 8 operating hours.
After every 25 operating hours.
Fluid Type: Mobil 1 15W-50 synthetic motor oil or
equivalent synthetic oil.
Important
Use oil specified or equivalent. Other
fluids could cause system damage.
Hydraulic System Oil Capacity: 67 oz. (2.0 l)
Note: There are two ways of checking the hydraulic oil.
One is when the oil is warm and one is when the oil is
cold. The baffle inside the tank has two levels depending
if the oil is warm or cold.
1. Position machine on a level surface and set the parking
brake.
2. Clean area around filler neck of hydraulic tank
(Fig. 51).
3. Remove the cap from the filler neck. Look inside to
check if there is fluid in the reservoir (Fig. 51).
4. If there is no fluid, add fluid to the reservoir until it
reaches the cold level of the baffle.
1
3
m–4638
3. Hole in threaded shaft
4. Washer (if needed)
5. Slot
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