Manual

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Howto Checkand Adjustthe PTOClutch
(46 & 52" Models)
Checkthe PTOclutch adjustment after the initial 25 hour
break-in period and then after every 250 hours of operation.
Also perform the following procedure if the clutch is slipping
or will not engage,or if a new clutch has beeninstalled.
,_ WARNING:Beforeyou make an inspection,
adjustment,or repair to the unit, disconnectthe
wire tothe sparkplug. Removethe wire from the
sparkplug to preventthe engine fromstarting by
accident.
1. Remove key from ignition switch and disconnect spark
plug wires to preventthe possibility of accidental
starting while the PTO is being adjusted.
2. Note the position of the 3 adjustment windows (A,
Figures25 & 26) in the side of the brake plate and the
nylock adjustment nuts (B}.
3. Insert a .016"-.018" (0,40-0,45mm) feeler gauge (C,
Figure 26) through each window, positioning the gauge
betweenthe rotor face andthe armature face asshown.
4. Alternately tighten the adjustment nuts (B) until the
rotor face and armature face just contactsthe gauge.
5. Checkthe windows for an equal amount of tension
when the gauge is inserted and removed, and make any
necessaryadjustments by tightening or loosening the
adjustment nuts.
NOTE:The actual air gap betweenthe rotor and
armature mayvary even after performing the
adjustment procedure. This is due to dimensional
variations on component parts, and is an acceptable
condition.
6. Checkthe mower bladestopping time. The mower
blades and mower drive belt should come to a
complete stop within five seconds after the electric PTO
switch is turned off.
Figure 26: PTOclutch adjustment
A - Adjustment window
B - Adjustment nut
C -. 016"-.018" (0,40-0,45mm) feelergauge
BladeBrakeCheck(46 & 52" Models Only)
Mower blades and mower drive belt should come to a
complete stop within five seconds after electric PTOswitch
is turned off.
1. With parking brake engaged, PTOdisengagedand an
operator in the seat, start the engine.
2. Havean assistant observethe mower drive belt through
the opening betweenthe frame and top of mower deck.
Engagethe PTOand wait severalseconds. Disengage
the PTOand check the amount of time it takes for the
mower drive belt to stop.
3. If the mower drive belt does not stop within five
seconds, perform the PTOClutch Adjustment. If the
belt still does not stop within 5 seconds, see your
dealer.
Figure 25: PTOclutch
A - Adjustment window (3)
B - Adjustment nut
24
English
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