Drive System Maintenance; Checking The Tire Pressure; Hydraulic System Maintenance; Checking The Hydraulic Oil Level - Toro 74833 Operator's Manual

Drive System
Maintenance

Checking the Tire Pressure

Service Interval: Every 25 hours—Check tire pressure.
Maintain the air pressure in the front and rear tires as
specified. Uneven tire pressure can cause uneven cut.
Check the pressure at the valve stem (Figure 45). Check
the tires when they are cold to get the most accurate
pressure reading.
Rear Tires: 13 psi (90 kPa)
Front Tires (caster wheels): 35 psi (241 kPa)
Figure 45
1. Valve stem
Hydraulic System
Maintenance
Oil Type: 20w-50 engine oil.
Important: Use oil specified or equivalent. Other
fluids could cause system damage.
Checking the Hydraulic Oil
Level
Service Interval: Every 25 hours
Check expansion reservoir and if necessary add 20W-50
engine oil to the FULL COLD line
3
1. Expansion reservoir
2. Full Cold line
Changing the Hydraulic
System Filter and Oil
The filter and oil are changed at the same time. Do Not
reuse oil. Once the new filter is installed and oil is added
any air in the system must be purged.
The bleeding process is repeated until the oil remains
at the FULL COLD line in the reservoir after purging.
Failure to properly perform this procedure can
37
G010253
Figure 46
3. Engine
1
2