Charge Pump Location

FIGURE 8

e)To “prime” charge pump, loosen two hex socket head capscrews (shown in Figure 11) 1-1/2 turns only. Make sure engine is not running. Lift charge pump housing upward and wait for a steady flow of oil to flow out from under housing. Retighten capscrews. Do this for both pumps. Note: Hydraulic reservoir can be pressurized to up to 5 psi (35 kPa) to speed this process.

f)If either drive wheel still does not rotate, stop and repeat Steps (d) through

(e) above for the respective pump. If tires rotate slowly, the system may prime after additional running. Check oil level as stated in Section 5.1.8.

g)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 Section 5.1.8.

h)Check hydro drive linkage adjustment as stated in Section 5.2.6.

5.1.11Check tire pressures.

Service Interval: Pneumatic (air-filled) Drive Tires- 40 hrs.

Semi-pneumatic Caster Tires – No maintenance

a)Stop engine and wait for all moving parts to stop. Remove ignition key or spark plug wire(s). Check air pressure in drive tires; recommended tire pressure is 12-16 psi (83-110 kPa).

b)Inflate tires to pressures stated above. Measure the circumference of each drive tire. Adjust tire pressures within the above range to try to make tire circumferences match as closely as possible.

5.1.12Inspect Belt wear. Service Interval: 40 hrs.

a)Stop engine and wait for all moving parts to stop. Remove ignition key or spark plug wire(s).

b)Remove deck support belt shield to check mower deck drive belt condition.

c)Look under engine deck to check the pump drive and clutching belt condition.

d)Check all idler arms to be sure they pivot freely. Disassemble, clean and grease pivot bushings if necessary.

5.1.13Inspect PTO Clutching Belt Tension.

Service Interval: Check every 2 hrs. for first 8 hrs. operation then check every 40 hrs. thereafter.

a)Stop engine and wait for all moving parts to stop.

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