Lawn Mower User Manual

SERVICE AND ADJUSTMENTS
TO REPLACE MOWER BLADE (SECONDARY)
DRIVE BELT (See Fig. 25)
Park the tractor on level surface. Engage parking brake.
Remove mower (See "TO REMOVE MOWER" in this
section of manual).
• Remove screws from R.H. and L.H. mandrel covers
and remove covers.
REMOVE MOWER DRIVE BELT
(Refer to "TO REMOVE MOWER DRIVE BELT" illustration
in this section of manual).
• Carefully roll belt over the top of R.H. mandrel pulley.
• Remove belt from idler pulleys.
• Check primary idlerarm and two idlers to see that they
rotate freely.
• Be sure spring is securely hooked to primary idler arm
and spring arm.
REMOVE MOWER BLADE (SECONDARY) DRIVE BELT
• Carefully roll belt off L.H. mandrel pulley.
Remove belt from center mandrel pulley, idler pulley,
and R.H. mandrel pulley.
• Remove any dirtorgrass which mayhave accumulated
around mandrels and entire upper deck surface.
• Check secondary idler arm and idlerpulleyto see that
they rotate freely.
• Be sure spring is hooked in secondary idler arm and
secondary spring arm.
INSTALL NEW MOWER BLADE (SECONDARY) DRIVE
BELT
• Install new belt in lower groove of R.H. mandrel pulley,
idler pulley, and center mandrel pulleyas shown.
• Carefully roll belt over LH. mandrel pulley. Make sure
belt is in all grooves properly.
REINSTALL MOWER DRIVE BELT
(Refer to "TO REMOVE MOWER DRIVE BELT" illustration
in this section of manual).
• Install belt into upper groove of R.H. mandrel pulley
and around both idlers. Pull belt to front of mower to
remove slack.
• Reinstall mandrel covers and securely tighten all
screws.
• Carefully check belt routing making sure belt is in a!l
grooves correctly.
• Reinstall mower totractor (See %O INSTALL MOWER"
in this section of manual).
SECONDARY
IDLER ARM SPRING
L.H.M_NDREL IDLER SECONDARY
PULLEY SPRING ARM
CENTER
R.H. MANDREL
FIG. 25
TO ADJUST ATTACHMENT CLUTCH
(See Fig. 26)
The electric clutch should provide years of service. The
clutch has a built-in brake that stops the pulley within 5
seconds. Eventually, the internal brake will wear which
may cause the mower blades to notengage, or, to notstop
as required. Adjustments should be made by your nearest
authorized service center/department.
• Make sure attachment clutch and ignition switches are
in "OFF" position.
Adjust the three nylon Iocknuts until space between
clutch plate and rotor measures .012" at all three slot
locations cut in side of brake plate.
NOTE: After installing a new electric clutch, run tractor at
full throttle and engage and disengage electric clutch 10
cycles to wear in clutch plate.
ROTOR
SLOT (3) CLUTCH PLATE
.012"
I
.._
NYLONLOCKNUT(3) BRAKE PLATE
FIG. 26
23