Adjusting The Boom Actuator - Toro 41198 Multi-Pro 1250 Operator's Manual

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.
G010597
Figure 69
2. Place a pan under the drain plug on the pump drive
gear box (Figure 70).
1. Pump drive gearbox
2. Fill tube
3. Remove the fill plug and drain plug (Figure 70),
allowing the oil to drain into the pan.
4. Install and tighten the drain plug when the fluid
stops draining.
5. Add approximately 1 quart (1 L) of Mobil SHC 634
Synthetic Lubricant to the fill tube.
Important: Use only Mobil SHC 634 Synthetic
Lubricant or equivalent synthetic fluid in the
gear box. Non-synthetic oils may break down
causing damage to the pump gearbox.
6. Install the fill plug.

Adjusting the Boom Actuator

Service Interval: Every 400 hours—Check boom
actuator hydraulic oil for air bubbles.
1. Position the sprayer on a level surface, lower the
booms into the spray position.
2. Set the parking brake, stop the pump, stop the
engine, and remove the ignition key
3. Attempt to lift the boom by applying a moderate
amount of pressure (just enough to lift the boom
manually) while observing the actuator rod. If the
actuator rod exhibits movement refer to below.
4. Repeat the procedure for the opposing boom.
56
Figure 70
3. Drain plug