Husqvarna 55R21HV Owner's Manual page 14

SERVICE AND ADJUSTMENTS
TO REMOVE DRIVE BELT
(See Figs. 18-20)
1. Disconnect spark plug wire from spark plug and place
wire where it cannot come in contact with plug.
2. Remove screws retaining drive cover and remove drive
cover from lawn mower housing (See Fig. 18).
SCREWS
LAWN
MOWER
FIG. 18
3. Remove drive cable from anchor, then detach spring
from idler arm assembly (See Fig. 19).
IDLER ARM ASSEMBLY DRIVE CABLE ANCHOR
/ DRIVE BELT
\
DRIVE BELT _-_ PIVOT '\ HOUSING
PULLEY KEEPER \ HOLE
FIG. 19
4. Pivot idler arm assembly to slacken drive belt, then
remove drive belt from drive pulley, belt keepers and
idler arm.
5. Turn lawn mower on its side. Make sure air filter and
carburetor are up.
6. Remove screw securing debris shield. Note that the
debris shield has a tab which fits into a gap in the
housing (See Fig. 20).
HOUSING CRANKSHAFT
HOLE
TAB
BLADE
ADAPTER
DEBRIS
HARDENED
WASHER
LOCK-
TRAILING
SCRE_ EDGE
BOLT
FIG. 20
7. Use a wood block between blade and mower housing
to prevent blade from turning when removing blade
bolt.
NOTE: Protect your hands with gloves and/or wrap blade
with heavy cloth.
8. Remove blade bolt.
9. Remove blade, attaching hardware (bolt, lock washer,
hardened washer), blade adapter and debris shield as
one assembly.
10. Remove drive belt from btade adapter and debris shield;
discard old belt.
TO REPLACE DRIVE BELT (See Figs. 18-21)
1. Place new drive belt in the belt retainer of the debris
shield. Be sure to route belt between belt keepers and
through slot as shown (See Fig. 21).
BELT RETAINER_
BELT
KEEPER, _
DRIVE
BELT
TAB
DEBRIS
SLOT SHIELD
FIG. 21
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