Simplicity ZT3500B2448 Operator's Manual page 34

Maintenance
Check the Mower Belt Idler Tensioner Spring Length
1. Park the machine on a smooth level surface such as a
concrete floor. Disengage the PTO, engage the parking
brake, turn off the engine and remove the ignition key.
2. Lower the mower deck to its lowest cutting position.
3. Measure the coil length of the mower belt tensioner
spring (A, Figure 42). The measurement should equal 7"
(17,8 cm). If the measurement does not equal 7" (17,8
cm), adjust the anchor eyebolt (B).
Adjusting the Mower Belt Idler Spring Length
1. Loosen the jam nut (C).
2. Turn the adjustment nut (D) until a measurement of 7"
(17,8 cm) is achieved.
3. Retighten the jam nut.
32
7"
(17,8 cm)
C
D
Figure 42. Adjusting the Mower Belt Idler Spring Length
A. Mower Belt Tensioner Spring
B. Anchor Eyebolt
C. Jam Nut
D. Adjustment Nut
A
B
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