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Figure 48
1. Valve stem
Adjusting the Castor Pivot
Bearing
Check after every 500 operating hours or at storage, which
ever comes first.
1. Stop the engine, set the parking brake, remove the key
and disconnect the spark plug wires from the spark
plugs.
2. Remove dust cap from castor and tighten lock nut
(Fig. 49).
3. Tighten until spring washers are flat and then back off
a 1/4 turn to properly set the pre–load on the bearings
(Fig. 49).
4. Grease castor pivot. Refer to Greasing and Lubrication
on 37.
Important
Make sure spring washers are installed
correctly as shown in figure 49.
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
m–1872
3
2
1
M–4640
3. Dust cap
39
1. Stop the engine, set the parking brake, remove the key
and disconnect the spark plug wires from the spark
plugs.
2. Remove cotter pin.
3. Torque slotted nut to 125 ft.-lb. (169.5 N m) (Fig. 50).
4. Check the distance from bottom of slot in nut to inside
edge of hole. Two threads or less should be showing
(Fig. 50).
5. If more than two threads are showing remove nut and
install washer between hub and nut (Fig. 50).
6. Torque the slotted nut to 125 ft.-lb. (169.5 N m)
(Fig. 50).
7. Tighten nut until the next set of slots line up with the
hole in the shaft (Fig. 50).
8. Replace cotter pin.
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 engine is first
started.
Check the hydraulic fluid level after first 8 operating
hours.
Check the hydraulic fluid level 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)
1
3
m–4638
3. Hole in threaded shaft
4. Washer (if needed)
5. Slot
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