Yard-Man 604 - Manual (Page 21)

21
Figure 17
Lower Drive Belt
NOTE: Proper removal of the lower drive belt
requires the removal of several tractor components.
Read through the following procedure prior to
attempting it to determine if you feel you could
successfully complete it. If you don’t, see an
authorized MTD service dealer to have the belt
changed.
IMPORTANT: Note the routing of the lower drive
belt around both the pulleys and the belt keepers
BEFORE performing the following steps.
• Locate the variable-speed pulley through the
battery tray opening. See Figure 16.
• Remove the variable-speed pulley by
loosening the hex bolt that affixes it to the
transmission. Use a second wrench to hold
the hex nut on the bottom side of the pulley.
• Slide the belt off of the variable-speed pulley
as you lift the pulley up and out through the
battery tray opening.
NOTE: Jacking the rear of the tractor up off the
ground and securing it with jackstands at this point in
the procedure will ease the following steps, but is not
necessary.
• Remove the rear idler pulley from the double-
idler bracket while unrouting the belt from
around both the rear and the front idler pulley.
Refer to Figure 16.
• On units equipped with an electric PTO,
carefully unplug the tractor’s wire harness
from the connector on the electric PTO clutch.
See Figure 17.
Figure 18
Drive belt (Lower)
Drive belt (Upper)
Front of Tractor
Rear Idler Pulley
Front Idler Pulley
Variable-speed
Pulley
Battery Tray
Belt Keeper
Transmission Idler Pulley
Transmission Pulley
Engine Pulley
Single-speed
Transmission
Shift Lever
Opening
Double-Idler Bracket
Idler Bracket
to AutoDrive ™ pedal
Belt Keeper
NOTE: View shown from above tractor.
Electric PTO Clutch
(if so equipped)
(Upper Portion)
NOTE: View shown from beneath tractor.
Hex Bolt
Electric
PTO Clutch
Connector
(if so equipped)