User guide

20
Section 5 - ADJUSTMENTS & REPAIR
4.2.1. MOWER DECK ADJUSTMENT (LEVELNESS)
(Continued)
6. Loosen the nuts and bolts that secure both front
and rear deck support brackets on the high side of
deck. Located above each support bracket, on the top
part of the power unit frame, are three shim plates.
Remove the shim plates on both of the front and rear
lift arms and position plates between the support
bracket and the frame of the power unit. Inserting the
shim plates in this procedure will lower that side of the
deck. Retighten the support bracket nuts and bolts to
20 to 30 ft. lbs. of torque. See Figure 4.2.
FIGURE 4.2
7. Move deck lift lever and set the mower deck to
the highest cutting position and recheck side to side
blade tip dimensions. If both blade tips are within
1/8” of each other then levelness is correct. If blade
tips are still unlevel repeat steps 1 through 6 and
add another shim plate until deck is level.
FRONT to REAR LEVEL
8. Place machine on a smooth level surface.
9. Check blade tips by rotating the outside blades
until tips are pointing to the front and rear of deck.
Check the measurement of blade tips to the ground on
both blades. Front to rear measurement should be 1/4”
to 3/8” higher in the rear. If measurement of the blade
tips are not within the previously mentioned
measurement, adjustment should be made.
10. Move deck lift lever and set the mower deck to the
highest cutting position.
11. Place a wooden block under the front and rear
edge of the mower deck.
12. Move deck lift lever and set the mower deck to a
lower cutting position until deck rests on wooden
blocks. This will relieve pressure from deck lift
components.
13. NOTE:
The timing rod connects the front and rear
lift arms and maintains the deck in the same attitude
through all heights of cut. Adjust the deck by loosening
and rotating the timing rod adjusting nuts. Rotate both
nuts forward to lower the rear of the deck or rearward
to raise the rear of the deck. Tighten the nuts securely.
See Figure 4.2A.
14. Raise cutting deck to highest cutting position
and check measurement. If blade tips are not within
correct measurement repeat steps 8 through 13
until deck is level.
FIGURE 4.2A
POWER
UNIT
FRAME
DECK
SUPPORT
BRACKET
SHIM
PLATES
ROTATE NUTS THIS
DIRECTION TO RAISE
REAR OF MOWER DECK
ROTATE NUTS THIS DIRECTION TO
LOWER REAR OF MOWER DECK
TIMING ROD
REAR LIFT ARM
POWER UNIT FRAME