Engine Adjustments & Repair; Mower Deck & Component Adjustments; Blade Brake Adjustment; Blade Belt Adjustment - Snapper LT160H42FBV Operator's Manual

Section 4 - ADJUSTMENT & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance or
service with the engine or blades running. STOP
blades. STOP engine. Set brake. Remove key.
Remove spark plug wire from spark plug and secure
wire away from spark plug. Engine and components
can be extremely hot. Avoid burns by allowing engine
and components sufficient time to cool.
4.1 ENGINE ADJUSTMENTS & REPAIR
Refer to the engine owner's manual for those
adjustments and/or repairs that can be made by the
owner.
4.2 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 achieving these adjustments and repairs, it
is recommended that these repairs be made by an
authorized SNAPPER dealer.
I Blades must stop rotating in 5 seconds or less after I
blades have been turned off. DO NOT operate l
machine until blade brake has been repaired and l
functioning properly. Contact your SNAPPER dealerl
for assistance.
4.2.1. BLADE BRAKE ADJUSTMENT
The blade brake when functioning properly will stop
blade rotation in 5 seconds or less. The brake requires
no adjustment. If blades continue to rotate after 5
seconds the blade brake must be repaired. Contact your
authorized SNAPPER dealer for assistance.
d. Disconnect rear sector plates and allow center,
rear of deck to rest on angle iron.
e. Measure the distance from blade tips to floor. If
the measurement is within 1/8" from side-to-side, the
deck levelness is satisfactory. If the difference from
side-to-side is greater than 1/8", an adjustment will
have to be made. See Figure 4.1.
REAR TO FRONT VIEW OF DECK
x - 1/8"
X
I
L,o.,,,o, 1
FIGURE 4.1
f. Loosen the shoulder bolt that retains the
eccentric.
g. Turn eccentric "UP" or "DOWN" as required
until blade tips are within 118" of the same
distance from the floor. See Figure 4.2.
h. Tighten shoulder bolt loosened in Step "f".
i. Readjust rear sector plates to align with holes
in support brackets.
j. Reconnect sector plates, remove angle iron,
pipe, etc. and recheck side to side level. Adjust as
needed to result in blade tips being within 1/8" of the
same distance from the floor.
k. Proceed to check front to rear deck pitch.
4.2.2. BLADE BELT ADJUSTMENT
The 42" and 48" mower deck drive belts do not
require any adjustment. If the belt does not drive
blade properly, replace belt as needed.
LOOSEN
PIVOT
BOLT
LOOSEN
SHOULDER
BOLT
4.2.3. MOWER DECK ADJUSTMENT (LEVELNESS)
1. SIDE-To-SIDE (42" Decks)
Before making deck leveling adjustments, check the
tire pressure. Check tires and add or release air as
needed to bring pressure to 12 PSI in front and 12 PSI
/
in rear tires. If tires are properly inflated and mowing _/
is still uneven, adjust side-to-side deck levelness as
follows:
a. Place machine on a smooth level surface.
b. Turn engine off and remove key, remove spark
plug wire(s) from spark plug(s) and secure wire(s)
away from plug(s).
c. Place a piece of angle iron, pipe, or similar
object under center of deck at the rear.
FIGURE 4.2
TURN ECCENTRIC
AS REQUIRED
15