Cleaning; Servicing The Spark Arrestor; Muffler - Toro 30868 Groundsmaster 4700-D Operator's Manual
Traction unit
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Also See for 30868 Groundsmaster 4700-D:
- Service manual (298 pages) ,
- Installation instructions manual (20 pages) ,
- Operator's manual (92 pages)
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Figure 60
1. Counterbalance dial
The traction assist valve (Figure 60 ) is used to boost the
pressure in the counterbalance circuit. Recommended
traction assist counterbalance pressure is 700 psi when
traction pressure is above 1800 psi. Rotate the screw
(Figure 60 ) clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Important: Traction unit must be at operating
temperature when adjusting hydraulic pressure.
Cleaning
Servicing the Spark Arrestor
Mufer
Every 200 hours operation, clear the muffler of carbon
buildup.
1. Remove the pipe plug from the clean-out port at
the lower side of the muffler.
The muffler may be hot and could cause
injury.
Be careful while working around the muffler.
2. Start the engine. Plug the normal muffler exit with
a block of wood or metal plate so that the exhaust
flow will be forced out of the clean-out port.
Continue to block the exit until carbon deposits
cease coming out of the port.
Do not stand in line with the clean-out port.
Always wear safety glasses.
3. Stop the engine and replace the pipe plug.
2. Traction assist valve
46
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