Cub Cadet RZT 50 manual Safety Interlock System, Starting The Engine

•Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is an approved fuel. Other gasoline/alcohol blends are not approved.

•Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline blends (up to a maximum of 15% MTBE by volume) are approved fuels. Other gasoline/ ether blends are not approved.

•Check the engine oil level.

•Clean the air cleaner element if necessary.

•Check the tire inflation pressures.

•Adjust the seat for operator’s maximum comfort, visibility and for maintaining complete control of the tractor.

SAFETY INTERLOCK SYSTEM

This tractor is equipped with a safety interlock system for the protection of the operator. If the interlock system should ever malfunction, do not operate the tractor. Contact your authorized Cub Cadet Dealer.

•The safety interlock system prevents the engine from cranking or starting unless the RH and LH drive control levers are moved fully outward in the neutral position, the parking brake is engaged, and the PTO is disengaged.

•To avoid sudden movement when disengaging the parking brake, the safety interlock system will shut off the engine if the RH and/or LH drive control levers are moved to a position other than the fully out in neutral position when the parking brake is engaged

•The safety interlock system will shut off the engine if the operator leaves the seat before engaging the parking brake.

•The safety interlock system will shut off the engine if the operator leaves the seat with the PTO engaged, regardless of whether the parking brake is engaged.

NOTE: The PTO switch must be moved to the “OFF” position to restart the engine.

•The safety interlock system will shut off the PTO and the mower blades will stop if both drive con- trol levers are moved into the reverse position. The PTO will re-engage when one or both of the levers are moved back to the neutral or forward position.

STARTING THE ENGINE

WARNING: This unit is equipped with a safety interlock system designed for the protection of the operator. Do not oper- ate the tractor if any part of the interlock system is malfunctioning. Periodically check the functions of the interlock sys- tem for proper operation.

WARNING: For personal safety, the operator must be sitting in the tractor seat when starting the engine.

•Move the RH and LH drive control levers fully outward in the neutral position. Refer to Figure 9.

•Operator must be sitting in the tractor seat.

•Engage the parking brake. Refer to Figure 9.

•Make certain the PTO switch is in the disen- gaged (down) position. Refer to Figure 9.

•Pull the choke control knob upward to the full choke position. NOTE: If the engine is warmed up, it may not be necessary to choke the engine.

•Move the throttle control to midway between its SLOW and FAST positions.

LH Control Lever		RH Control Lever
Out in Neutral		Out in Neutral
	Parking Brake
	Engaged

Throttle Control	PTO Switch in Down
Forward in Choke
	(Disengaged) Position

Figure 9

•Turn the ignition key clockwise to the “START” position and release it as soon as the engine starts; however, do not crank the engine continu- ously for more than 5 seconds at a time. If the engine does not start within this time, turn the key to “OFF” and wait at least 15 seconds to allow the engine’s starter motor to cool. Try again after waiting. If after a few attempts the engine fails to start, do not keep trying to start it with the choke closed as this will cause flooding and make start- ing more difficult.

•As the engine warms up, gradually push the choke knob downward to open the choke. Do not use the choke to enrich the fuel mixture, except as necessary to start the engine.

•Allow the engine to run for a few minutes at mid throttle before putting the engine under load.

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