Servicing The Spark Plug; Electrical System Maintenance; Servicing The Traction-Interlock Switch - Toro Greensmaster 1000 Operator's Manual

Servicing the Spark Plug

Service Interval: Every 100 hours/Every 6 months
(whichever comes first)
Every 300 hours/Yearly (whichever comes first)
Use an NGK BPR6ES spark plug or equivalent.
1. Shut off the engine and wait for all moving
parts to stop; refer to
Maintenance (page
2. Clean around the spark plug.
3. Remove the spark plug from the cylinder head.
Important:
Replace a cracked, fouled, or
dirty spark plug. Do not sand blast, scrape,
or clean the electrodes because engine
damage could result from grit entering the
cylinder.
4. Set the gap on the plug to 0.7 to 0.8 mm (0.028
to 0.031 inch)
Figure 30
1. Center-electrode insulator
2. Side electrode
5. Carefully install the spark plug by hand (to avoid
cross threading) until it is hand tight.
6. Tighten the spark plug an additional 1/2 turn if
it is new; otherwise, tighten it an additional 1/8
to 1/4 turn.
Important:
A loose spark plug can become
very hot and can damage the engine;
overtightening a spark plug may damage the
threads in the cylinder head.
7. Connect the wire to the spark plug.
Preparing the Machine for
25).
3. Air gap
Electrical System
Maintenance
Servicing the
Traction-Interlock Switch
Use the following procedure if the traction-interlock
switch needs adjustment or replacement.
1. Ensure that the engine is off and the traction
lever is disengaged and resting against the
neutral stop
g000533
1. Traction lever
2. Neutral stop
2. Loosen the interlock switch mounting fasteners
(Figure 31).
3. Place a 0.8 mm (0.032 inch) thick shim between
the traction lever and the interlock switch
31).
4. Tighten the interlock switch mounting fasteners
and check the gap again.
Note:
The traction lever must not contact the
switch.
5. Engage the traction lever and verify that the
switch loses continuity.
Note:
Replace the switch if necessary.
29
(Figure 31).
Figure 31
3. Interlock switch
4. 0.8 mm (0.032 inch) gap
g027905
(Figure