Husqvarna 917.279020 Owner's Manual page 22

SERVICE AND ADJUSTMENTS
TO REPLACE MOWER DR_VE BELT TO REPLACE MOWER BLADE (SECONDARY)
MOWER DRIVE BELT REMOVAL (See Fig. 23)
• Park tractor on a level surface. Engage parking
brake.
• Lower mower to its lowest position.
Remove screws from R.H. mandrel cover and remove
cover.
• Remove any dirt or grass clippings which may have
accumulated around mandrels and entire upper deck
surface.
• Disconnect R.H.suspension arm from rear deck bracket
by removing retainer spring.
• Roll belt over the top of R.H. mandrel pulley carefully,.
• Remove belt from electric clutch pulley.
• Remove belt from idler pulleys.
• Check primary idler arm and two idlers to see that they
rotate freely.
• Be sure spring is securely hooked to primary idler arm
and spring arm.
MOWER DRIVE BELT INSTALLATION (See Fig. 23)
• Install belt in both idlers.
• install new belt onto electric clutch pulley.
• Roll belt into upper groove of R.H. mandrel pulley care-
fully.
• Carefully check belt routing making sure belt is in the
grooves correctly.
• Reconnect R.H. suspension arm to rear deck bracket
with retainer spring.
• Reassemble R.H. mandrel cover.
RH MANDREL
ELECTRIC
CLUTCH
PULLEY
SPRING ARM
FIG. 23
DR_VE BELT (See Fig. 24)
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 idler arm 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 dirt or grass which may have accumulated
around mandrels and entire upper deck surface.
• Check secondary idler arm and idler pulley to 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 pulley as shown.
• Carefully roll belt over L.H. 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 all
grooves correctly.
• Reinstall mower to tractor (See"TO INSTALL MOWE R"
in this section of manual).
L.H. MANDREL
FIG. 24
22