Set Mower Belt Tension; Safety Interlock System Check; Blade Brake Check; Pto Clutch Adjustment Check - Simplicity RT Series Operator's Manual

SET MOWER BELT TENSION

WARNING
For your personal safety, do not handle the sharp
mower blades with bare hands. Careless or
improper handling of blades may result in serious
injury.
Service Interval: Yearly
1. Turn the PTO to the off position, engage the parking
brake, turn the engine off, and remove the key.
Remove the mower deck (see "Mower deck
removal").
2. Remove the screws securing the belt covers.
Remove the belt covers.
3. Loosen the idler assembly capscrew (B, Figure 25).
4. Using a 3/8" drive ratchet and extension (D), move
the spring-loaded idler assembly (A) to relieve ten-
sion on the belt (C).
5. Remove the belt (C) and inspect it for cracks, missing
teeth and wear. Replace belt if worn or damaged.
6. Reinstall the belt (C). Releasing the idler assembly
(B) allows the spring to automatically tension the
cogged belt.
7. Tighten the idler assembly capscrew (B) and reinstall
the belt covers.
SAFETY INTERLOCK SYSTEM
CHECK
Service Interval: Every Fall & Spring
Check the function of the safety interlock system using
the test procedure found on page 7 of this manual. If the
tractor fails any of the tests, see your dealer.

BLADE BRAKE CHECK

Service Interval: Every 100 Hours or Fall & Spring
Mower blades and mower drive belt should come to a
complete stop within five seconds after electric PTO
switch is turned off.
1. With tractor in neutral, PTO disengaged and operator
in seat, start the engine.
2. Look over the left-hand footrest at the mower drive
belt. Engage the PTO and wait several seconds.
Disengage the PTO and check the amount of time it
takes for the mower drive belt to stop.
3. If mower drive belt does not stop within five seconds,
re-adjust the clutch or see your dealer.
Figure 25. Mower Belt Tension
A. 3/8" Square Hole
B. Pulley Capscrew

PTO CLUTCH ADJUSTMENT CHECK

Service Interval: After 25 Hrs, Then Every 250 Hrs
Check the PTO clutch adjustment after the initial 25 hour
break-in period and then after every 250 hours of opera-
tion–or if the clutch starts slipping or will not engage.
Check and adjust the clutch using the procedure outlined
in the Adjustments section of this manual.

ENGINE MAINTENANCE

Refer to the engine owner's manual for all engine main-
tenance procedures and recommendations.
21
Regular Maintenance
D
A
B
C. Arbor Drive Belt
D. Ratchet
C