Briggs & Stratton S175X Mower Belt Replacement, tension, 52” Deck, 61” Deck, 52” Deck, 61” Deck, Use extreme caution when rotating the idler

Troubleshooting, Adjustment & Repair

Mower Belt Replacement

52” Deck

To avoid damaging belts, DO NOT

PRY BELTS OVER PULLEYS.

1. Park the tractor on a smooth, level surface such	A
as a concrete floor. Disengage the PTO, engage
the parking brake, turn off the engine, and remove
the ignition key.

WARNING							B
Use extreme caution when rotating the idler
arm with the breaker bar, due to the increased
tension in the spring as the idler arm is being
rotated. Injury may result if the breaker bar is						61” Deck			A
prematurely released while the spring is under
tension.							B
2. Using a 1/2” breaker bar, place the square end in
the square hole located in the end of the idler arm
(A, Figure 56). Carefully rotate the breaker bar
counter-clockwise, which will relieve the tension
on the belt exerted from the idler arm.
3. Slide the drive belt over the edge of the stationary
idler pulley (B). Carefully release the tension on
the breaker bar until the idler arm stops against					orf
the center spindle pulley.
4. Remove the old belt and replace with a new
				ne.
Make sure the V-side of the belt runs in the pulley						Fig re 56.	Mower PTO Belt
grooves (Figure 57).
						A. I ler Arm
5. Install the drive belt on the PTO pulley, the spindle
						B. Stationary Idler Pulley
pulleys and all idler pulleys exceptNotthe stationa y
pulley (B, Figure 56). Carefully rotate the b eaker
bar counter-clockwise and install the belt on the
stationary idler pulley (B). Carefully r l			ase the
tension on the breaker bar.
6. Run the mower under no-load condition for about
5 minutes to break-in the new belt.
52” Deck	D	B	C			61” Deck	D	B	C
		Reproduction

A	A	A	A
	D		D
		D
	A		A

Figure 57. Mower PTO Belt Routing

A.Spindle Pulley

B.PTO Drive Belt

C.Spring-loaded Idler Pulley

D.Stationary Idler Pulley

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