14
Owner’s Manual
M200 AND 28463 STRING MOWER
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M-F 8-5 CST
WARNING
BEFORE YOU REMOVE THE DRIVE BELT, DISCONNECT THE
WIRE FROM THE SPARK PLUG.
IMPORTANT
TEST THE DRIVE SYSTEM. START THE ENGINE AND ENGAGE
AND DISENGAGE THE MOWER HEAD SEVERAL TIMES.
WHEN DISENGAGED, MAKE SURE THE MOWER HEAD
COMPLETELY STOPS WHEN RESTING ON THE GROUND.
IF THE MOWER HEAD CONTINUES TO ROTATE, TAKE THE
MOWER TO AN AUTHORIZED SERVICE CENTER.
HOW TO REPLACE THE DRIVE BELT
To replace the drive belt, the mower head and shield must be
removed as follows: SEE FIGURES 16 AND 17.
1. Remove the two fasteners that hold the rear of the shield
to the mower housing.
2. Remove the four fasteners that hold the front of the shield
and mower head to the mower housing.
3. Raise the front of the mower housing and remove the
drive belt.
4. Remove the “V” pulley from the idler bracket.
NOTE: On some models, it is necessary to loosen the
mounting bolt for the drive pulley to remove the drive belt.
Do not bend the belt guides. Use only OEM replacement
belts.
5. To assemble the drive belt, reverse the above steps. Make
sure all fasteners are tight. Make sure the mounting bolt
for the drive pulley is tight.
6. Check the routing of the drive belt. Make sure the drive
belt is inside of all belt guides as shown.
WARNING
DO NOT REMOVE GASOLINE WHILE INSIDE A BUILDING,
NEAR A FIRE, OR WHILE YOU SMOKE. GASOLINE FUMES
CAN CAUSE AN EXPLOSION OR A FIRE.
BOLTS
DRIVE BELT
SHIELD
MOWER
HEAD
FIGURE 16
DRIVE BELT
“V” PULLEY
RETURN SPRING
DRIVE PULLEY
BELT GUIDES
FIGURE 17
BELT TENSION ADJUSTMENT
Proper belt tension is critical to good performance. After 1/2
hour of operation, the engagement cable may have to be
adjusted due to initial stretch. Thereafter, check tension after
every two hours of operation. Proper tension is achieved when
the beehive spring extends 1/8" - 1/4" when drive lever is
engaged.
To increase belt tension do as follows:
1. Loosen upper jam nut on adjustment cable. SEE
FIGURE 18.
2. Tighten the lower jam nut in 1/8" increments, making sure
not to over adjust the tension.
3. Check adjustment by measuring the beehive spring
extension when drive lever is engaged. (Proper spring
extension is 1/8" - 1/4")
4. When proper adjustment is achieved, tighten bottom jam
nut.
JAM NUT
