Figure 56
1. Mounting bolt 2. Alternator
3. Increase or decrease the alter nator belt tension
and tighten the bolts .
4. Chec k the deflection of the belt ag ain to ensure
that the tension is cor rect.
Replacing the Blade Drive
Belts
T he blade dri v e belts , tensioned b y the spring
loaded idler pulleys , are v er y durable . Ho w ev er ,
after many hours of use , the belts will sho w signs
of w ear . Signs of a w or n belt are: squealing when
belt is rotating, blades slipping when cutting g rass ,
fra yed edg es , bur n marks and crac ks . R e place the
belts if any of these conditions are evident.
1. Lo w er the cutting unit to the 1 inc h height of
cut setting, mo v e the throttle lev er to the Slo w
position, stop the engine , set the parking brak e ,
and remo v e the ignition k ey .
2. R emo v e the belt co v ers from the top of the
cutting unit and set the co v ers aside .
3. Using a break er bar or similar tool, mo v e the
idler pulley for the top belt ( Figure 57 ) a w a y
from the top dri v e belt to release the belt
tension and allo w the belt to be slipped off the
pulleys .
Figure 57
1. Top belt 3. Bottom belt
2. Top idler pulley 4. Bottom idler pulley
4. Using a break er bar or similar tool, mo v e the
idler pulley for the bottom belt ( Figure 57 )
a w a y from the bottom dri v e belt to release the
belt tension and allo w the belt to be slipped
off the pulleys .
5. R oute a new belt around the g earbo x pulley ,
bottom spindle pulleys , and idler pulley
assembly as sho wn in Figure 57 .
6. R oute a new belt around the top spindle
pulleys and idler pulley assembly as sho wn in
Figure 57 .
7. Install the belt co v ers .
Controls System
Maintenance
Adjusting the Control Lever
Neutral Interlock Switch
1. Stop the mac hine , mo v e the control lev ers
fully into the neutral-loc k ed position, set the
parking brak e , and remo v e the ignition k ey .
2. R emo v e the bolts securing the front panel and
remo v e the panel ( Figure 58 ).
56
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