Pump Maintenance - Toro 41179 Operator's Manual

Pump Maintenance

Inspecting the Pump
Service Interval: Every 400 hours/Yearly (whichever
comes first)—Inspect the pump
diaphragm and replace if necessary.
(see an Authorized Toro Service
Distributor)
Every 400 hours/Yearly (whichever
comes first)—Inspect the pressure
dampener bladder and replace if
necessary. (see an Authorized Toro
Service Distributor)
Every 400 hours/Yearly (whichever
comes first)—Inspect the pump
check valves and replace if necessary.
(see an Authorized Toro Service
Distributor)
Note: The following machine components are
considered parts subject to consumption through use
unless found defective and are not covered by the
Warranty associated with this machine.
Have an Authorized Toro Service Distributor check
following internal pump components for damage:
• Pump diaphragm
• Pressure dampener bladder
• Pump check valves assemblies
Replace any components if necessary.
Adjusting the Air Pressure in Dampener
The air pressure in the dampener on the pump is set at
15 psi (1 bar) by the manufacturer. The recommended
pressure in the dampener is 1/3 of the spraying pressure.
If using a spray pressure greater than 45 psi (3.1 bar)
adjust the dampener accordingly.
Changing the Pump Drive Gearbox
Fluid
Service Interval: Every 400 hours/Yearly (whichever
comes first)
1. Position the sprayer on a level surface, set the parking
brake, stop the pump, stop the engine, and remove
the ignition key.
2. Place a pan under the drain plug on the pump drive
gear box (Figure 69).
1. Pump drive gearbox
2. Fill tube
3. Remove the fill plug and drain plug (Figure 69),
allowing the oil to drain into the pan.
54
G010597
Figure 68
Figure 69
3. Drain plug