Briggs & Stratton IS3200ZKAV3561 Dealer Setup & Adjustment Instructions Manual page 14

7. Set the mower deck to the 3-1/2" (8,9 cm) cutting
position.
8. Measure the coil-to-coil length (J) of the idler arm spring
(K). The measurement should equal 6-1/8" (15,6 cm) ±
1/8 (0,32 cm). If not, turn the adjustment nut (L) until the
measurement is achieved.
9. Tighten the jam nut and the 3/8" nut that secures the rear
back side idler pulley to the deck.
Check the Long Left Hand Deck Belt
NOTICE To avoid damaging belt, do not pry over
pulleys.
1. Check the routing of the long left hand belt (A, Figure
30). Make sure that the V-side of the belt is in the pulley
grooves of the left hand spindle pulley (B), center spindle
pulley (C), and the PTO clutch pulley (D). Make sure
that the back side of the belt contacts the fact of the
adjustable idler pulley (E). Make sure that the belt is
correctly routed in the belt guides (F & G).
30
WARNING
Use extreme caution when rotating the idler arm with the
breaker bar, due to the increased tension in the spring
as the idler arm as being rotated. Injury may result if the
breaker bar is prematurely released while the spring is
under tension.
2. If the long left hand belt is not properly seated, use a 1/2"
breaker bar (H) and place the square end in the opening
in the spindle drive idler arm (I) and rotate the idler arm
clockwise, which will relieve the tension on the belt
exerted from the idler arm.
14
3. Re-seat the long left hand belt and carefully release the
tension on the idler arm.
4. Set the mower deck to the 3-1/2" (8,9 cm) cutting
position.
5. Measure the coil-to-coil length (A, Figure 31) of the long
left hand belt tensioning spring (B). The measurement
should equal 10-1/4" (26 cm) ± 1/8 (0,32 cm). If not,
loosen the jam nut (C) on the eye bolt (D) and then turn
the adjustment nut (E) until the measurement is achieved.
Tighten the jam nut.
31
6. Re-install the mower deck guards and the floor pan.
Lubrication
Lubricate the unit at the locations shown in Figures 32, 33,
and 34 as well as the following lubrication points:
Grease:
• front caster wheel axles & yokes
• deck lift pivot blocks
• mower deck spindles
• mower deck rear pusher bars
• transmission cradle pivot points
Use grease fittings when present. Disassemble parts to apply
grease to moving parts when grease fittings are not installed.
Not all greases are compatible. Red grease (p/n 5022285)
is recommended, automotive-type, high-temperature, lithium
grease may be used when this is not available.
Oil:
• control handle pivots
• seat plate pivots
• deck lift pivots
• discharge chute hinge
Generally, all moving metal parts should be oiled where
contact is made with other parts. Keep oil and grease off belts
and pulleys. Remember to wipe fitting and surfaces clean
both before and after lubrication.
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