Snapper NZM19480KWV, NZM21520KWV Lawn Mower User Manual


 
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Section 5 - ADJUSTMENTS & REPAIR
5.1 NEUTRAL POSITION ADJUSTMENTS
(Continued From Previous Page)
12. With motion control levers remaining in the neutral
lock position, See Figure 3.7, hold connecting rod up
to the activation assembly and check length of rod. Tie
rod end bolt must align with the activation assembly. If
bolt is not aligned with the activation assembly, adjust
tie rod. Loosen jam nut that secures tie rod. Rotate tie
rod in or out to align with hole in activation assembly.
Repeat step for other hydro pump. See Figure 5.4.
FIGURE 5.4
13. Once tie rod end bolt is aligned with activation
assembly insert into hole and reinstall washers and nut
that secure bolt to assembly. Tighten securely. Tighten
tie rod jam nut securely.
14. Start engine, disengage parking brake, and
check rotation of the rear wheels.
15. Reinstall both hydro pump fans. Reinstall
washer and bolt. Tighten bolt securely.
16. Reinstall screen and tighten retaining hardware
securely.
5.2 MOWER DECK & COMPONENT ADJUSTMENTS
The following mower deck and component
adjustments and repairs can be made by the owner.
However, if there is difficulty in making these
adjustments and repairs, it is recommended that
these repairs be made by an authorized SNAPPER
dealer.
5.2.1. MOWER DECK ADJUSTMENT (LEVELNESS)
SIDE to SIDE and FRONT to REAR
Before making deck leveling adjustments, inflate rear
tires to 12 PSI and front tires to 25 PSI. When
adjusted correctly, the deck will be level side to side
within 1/8”, have a low cut setting of approximately 1”
and the blades pitched approximately 3/16” higher at
the rear.
1. Place machine on a smooth level surface.
2. Check side to side level by rotating blades until tips
are pointing to the sides of the deck. Check the
measurement of outside blade tips to the ground on
both blades. The measurement of each of the outside
blade tips should be within 1/8” of each other. If
measurement of the blade tips is not within 1/8”,
adjustment should be made.
3. Move deck lift lever and set the mower deck to the
highest cutting position.
4. Relive tension on deck lift assist spring by
loosening nut on eyebolt. Refer to Section “Removing
Deck”.
5. Place 1” blocks under the front and rear edge of the
mower deck.
6. Move deck lift lever and set the mower deck to the
lowest cutting position.
6. Loosen the nuts and bolts that secure both front
deck support chains. Adjust chains until tight and
retighten bolts and nuts. Torque to 20 to 30 ft. lbs. See
Figure 5.5.
FIGURE 5.5
LOOSEN NUT AND
ROTATE TIE ROD END
IN OR OUT TO ALIGN
WITH ACTIVATION
TIE ROD END
HYDRO
PUMP
HYDRO PUMP
ACTIVATION
ASSEMBLY
TIE ROD END
BOLT IS
SHOWN
MISALIGN WITH
ACTIVATION
ASSEMBLY
BOLT IS SHOWN
ALIGNED WITH
HOLE
LOOSEN BOLT AND NUT,
TIGHTEN CHAIN. SECURE
BOLTS AND NUTS
FRONT
LIFT ARM
CHAIN
DECK HANGER
BRACKET