Replace Emissions Air Intake Filter, Style a black finish

Maintenance

4.Thoroughly clean the area around each of the charge pump housings.

5.To “prime” charge pump, loosen two hex socket head capscrews (shown in Figure 14) 1 1/2 turns only. Make sure engine is not running. Lift the charge pump housing upward and wait for a steady flow of oil to flow out from under the housing. Retighten the capscrews. Do this for both pumps.

Note: Hydraulic reservoir can be pressurized up to 5 psi to speed this process.

6.If either drive wheel still does not rotate, stop and repeat steps 4 and 5 above for the respective pump. If wheels rotate slowly, the system may prime after additional running. Check oil level as stated in Check the Hydraulic Oil Level section.

7.Allow unit to run several minutes after the charge pumps are “primed” with drive system in the full speed position. Check oil level as stated in Check the Hydraulic Oil Level section.

8.Check hydro drive linkage adjustment as stated in Hydro Drive Linkage Adjustment section in Adjustments.

Figure 15

1.	Style A (black finish)	3.	Style B (yellow zinc)
2.	.03 inch (.76 mm)	4.	.24 inch (6 mm)

•Style A (black finish):

Torque the slotted nut to 140-155 ft-lb (190-210 N-m).

Note: Do Not use anti-seize on wheel hub.

•Style B (yellow zinc):

1.Remove and discard the cotter pin.

2.Torque the slotted nut to 100 ft-lb (136 N-m).

3.Check distance from bottom of slot in nut to inside edge of hole. Two threads (0.1 inch) or less should be showing.

Replace Emissions Air Intake Filter

Service Interval: Every 500 hours

1.Stop engine, wait for all moving parts to stop, and remove key or spark plug wire(s). Engage parking brake.

2.Remove the filter from the vent hose.

3.Insert a new filter into the end of the vent hose.

Wheel Hub-Slotted Nut Torque Specification

Service Interval: After the first 100 hours

Every 500 hours thereafter

See Figure 15 to determine which slotted nut has been installed on the unit.

	Figure 16
1. 0.1 inch max	2. No more than two
	threads (0.1 inch max)
	should be showing here.

4.If more than two threads (0.1 inch) are showing remove nut and install washer (P/N 1-523157) between hub and nut.

5.Torque the slotted nut to 100 ft-lb (136 N-m).

6.Then tighten nut until the next set of slots line up with the cross hole in shaft. Do Not loosen nut to align the slot. If required, tighten to the next set of slots.

7.Install new cotter pin (P/N 1-806800).