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INTERLOCK SAFETY SYSTEM
The interlock safety systems’s function is to prevent the engine form starting if the blade and/or
ground speed lever are engaged. It also causes engine shutdown if the operator falls from, or
attempts to leave the operator position while the blades or ground speed lever are engaged.
After the engine starts, the operator must hold either the left or right operator presence lever
down before engaging the blades or moving the ground speed lever. If neither operator presence
lever is held the engine will stop. Check the function of the safety electrical system on a regular
basis.
1. Engine MUST kill if blades are engaged without at least one O.P. lever held down.
2. Engine MUST kill if ground speed lever is taken out of neutral without holding down at least
one operator presence lever.
3. Engine MUST not start unless blades are off and ground speed lever is in the neutral position.
4. DO NOT operate the mower if the interlock safety system allows operation or starting in any
unsafe condition.
PUMP BELT
1. Before performing adjustments on pump belt, turn the mower off and disconnect spark plug
wire or wires.
2. Check tension on the belt. If it feels loose adjustment will need to be made.
3. Loosen the nut on the bottom of the idler pulley.
4. Slide the idler pulley against the belt, retighten the nut while applying pressure to the idler
pulley.