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Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine and blade running. STOP engine
and blade. Disconnect spark plug wire and secure
away from spark plug. Engine and components are
HOT. Avoid serious burns, allow sufficient time for
all components to cool. Wear heavy leather gloves
when handling or working around cutting blades.
Blades are extremely sharp and can cause severe
injury.
4.2 WHEEL DRIVE CONTROL ADJUSTMENT
(Engine To Transmission Deck Belt)
The wheel drive control requires periodic adjustment
to maintain proper engine to transmission drive belt
tension. The adjustment is located on the right handle
and requires no tools. See Figure 4.5.
IMPORTANT:
DO NOT operate engine when
inspecting or adjusting the drive belt.
1.
Visually check engine drive belt for cracking,
fraying, severed or belt strands exposed. Replace belt
before operating mower.
2.
To check for proper drive belt tension. STOP
engine. Shift ground speed control to 1
st
and engage
the wheel drive control. See Figure 4.4.
3.
With the wheel drive control engaged, pull the
mower handles, moving the mower rearward.
Observe the rear wheels.
4.
If the rear wheels slide on the surface (no rotation)
the belt is properly tensioned and the control does not
require adjustment.
5.
If the rear wheels rotate, increase belt tension by
rotating the thumb screw COUNTER-CLOCKWISE.
6.
Turn thumb screw one turn at a time and recheck
tension (repeating steps 3-5).
7.
When proper belt tension has been set, operate
machine and verify proper wheel drive control
function.
IMPORTANT:
DO NOT over-tighten wheel drive control.
DO NOT operate if control or drive does not function
properly. Contact your local SNAPPER Dealer for
assistance.
IMPORTANT:
If machine creeps forward after wheel
drive control is released the cable is too tight and must
be readjusted to eliminate all forward movement.
Machine must not have any forward movement when
wheel drive control is disengaged. If the wheel drive
control fails to return quickly to the “OFF” position when
released, check for a broken, binding, or kinked cable.
FIGURE 4.4
FIGURE 4.5
TURN ADJUSTING
WHEEL CLOCKWISE
TO INCREASE DRIVE
BELT TENSION
TURN ADJUSTING
WHEEL COUNTER-
CLOCKWISE TO
INCREASE DRIVE
BELT TENSION
VIEW SHOWN FROM
OPERATOR’S POSITION
WHEEL
DRIVE
CONTROL
GROUND
SPEED
CONTROL
3 FAST
1
BLADE
CONTROL
