Maintenance
53
Replacing the Deck Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks and
cracks are signs of a worn deck belt. Replace the deck
belt if any of these conditions are evident.
1.
Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2.
Remove the PTO drive belt. Refer to Replacing
the PTO Drive Belt, on page 53.
3.
Remove idler spring from idler arm, then remove
the worn deck belt (Fig. 46).
4.
Install the new deck belt around the spindle
pulleys, belt guide, the idler pulley, and in the
lower groove of the center spindle pulley
(Fig. 46).
5.
Using a socket and torque wrench, rotate the
idler adjusting nut until torque is 25–30 ft.–lb.
(34–41 N
D
m). Tighten two nuts.
1
m–3890
3
2
4
Figure 46
Top View
1.
Deck Belt
2.
Idler Arm
3.
Belt guide
4.
Idler Spring
6.
Reinstall the PTO drive belt. Refer to Replacing
the PTO Drive Belt, page 53.
Replacing the PTO Drive Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks and
cracks are signs of a worn drive belt. Replace the
PTO drive belt if any of these conditions are evident.
1.
Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2.
Remove the clutch retaining strap from machine
frame and unplug clutch terminal from wire
harness (Fig. 47).
3.
Remove the PTO drive belt (Fig. 47).
4.
Place new PTO drive belt over clutch, around
rear idler pulleys and onto mower top center
pulley.
Note:
Check that belt has only 1/4 twist
between each pulley and idler.
5.
Install clutch retaining strap and plug clutch
terminal into main wire harness (Fig. 47).
1
4
m–3748
3
2
5
Figure 47
1.
Clutch
2.
Clutch retaining strap
3.
clutch Terminal
4.
PTO belt
5.
Machine Frame
6.
Check belt tension. The center bolt of spring
loaded idler must be between the two alignment
holes in left support plate (Fig 48).
Summary of Contents for Z-Master Z253
Page 4: ...Contents 2...
Page 9: ...Safety 7 Slope Chart Read all safety instructions on pages 4 6...
Page 10: ...8...
Page 58: ...Maintenance 56 Wiring Diagram...
Page 63: ......
