Traction Belt Tension & Replacement; Blade Brake/Electric Clutch Adjustment - Snapper NZM19480KWV, NZM21520KWV Safety Instructions & Operator's Manual

Section 5 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or
service with engine running. STOP engine. STOP
blades. Set brake. Remove key. Remove spark plug
wires and secure away from spark plugs. Engine and
components are HOT. Avoid serious burns, allow
sufficient time for all parts to cool.
5.3 TRACTION BELT TENSION
The traction drive belt tension does not require
adjustment. If the belt is slipping, it will have to be
replaced.
FIGURE 5.9
5.4 TRACTION BELT REPLACEMENT
1. Remove clutch to deck belt. See Figure 5.10
2. Loosen jam nut on J-Bolt and turn both nuts out to
the end of J-Bolt, reducing spring tension. Unhook
traction idler spring from bolt in frame. See Figure 5.9
3. Remove anti-rotation bracket. See Figure 5.10
4. Disconnect the electric clutch from main wire
harness.
5. Remove traction belt from around engine pulley
and hydro pumps.
6. Install new belt and route around engine pulley
and hydro pump pulleys.
7. Reconnect electric clutch to main wire harness.
8. Reinstall anti-rotation bracket and tighten nuts
securely.
9. Reattach traction idler spring. Run both nuts all
the way to the end of the threads on the J-Bolt.
Tighten jam nut securely. See Figure 5.10.
10. Reinstall electric clutch to deck belt onto electric
clutch.
UNHOOK TRACTION
DRIVE IDLER SPRING
JAM NUT
REMOVE CLUTCH
TO DECK BELT
J-BOLT

5.5 BLADE BRAKE/ELECTRIC CLUTCH ADJUSTMENT

NOTE: Electric Clutch is shown removed from the
machine. Removal is not necessary for adjustment.
ROTATE NUTS
IN OR OUT
TO ACHIEVE
CORRECT GAP
23
REMOVE ANTI-
ROTATION BRACKET
FIGURE 5.10
The blade switch engages the electric clutch when
pulled out to the "ON" position. When the blade
switch is in the "ON" position the cutting blade(s)
are engaged. The blade switch disengages the
electric clutch when the blade switch is pushed in to
the "OFF" position. When the blade switch is in the
"OFF" position the cutting blade(s) are disengaged.
The electric clutch is adjustable. The blades should
stop rotation in 7 seconds or less. If the electric
clutch fails to stop the blades rotation in 7 seconds,
adjustment is necessary.
1. Insert a feeler gauge into the three slots on the
electric clutch.
2. Check gap through all three slots in the side of
the clutch. The gap should be set at .015.
3. If gap is incorrect rotate nuts in or out to achieve
the correct gap. See Figure 5.11.
INSERT FEELER GAUGE.
GAP SHOULD BE .015
FIGURE 5.11