MTD Troy-Bilt Zero Turn Tractor RZT 50 W Inch Deck Lawn Mower Owners Manual

TRACTOR HIGH SPEED TRACKING
TRANSMISSION DRIVE BELT
If the tractor tracks to one side with both drive control
levers  fully   forward,   adjust  the   control  levers   as
follows:
If  the   transmission  drive  belt   becomes  worn   and
causes the drive transmissions to slip, the drive belt
must be replaced. To replace the drive belt, proceed
as follows:
Check  for  proper  and  balanced  air  pressure  in
both front and rear tires. Refill tires if necessary.
Remove the deck drive belt from the PTO clutch
on the bottom of the engine following the instruc-
tions  in  Deck  Removal,  SECTION  5:  MOWER
DECK.
Perform the first three steps in the previous sub-
section, Tractor Creeping, to verify that the tractor
is  not  creeping.  If  creeping,  adjust  following  the
instructions in that sub-section.
From beneath the rear of the tractor, insert a 3/8
inch drive ratchet into the square hole of the drive
idler bracket. See Figure 28.
Recheck  the  tracking  after  making  any  adjust-
ments to the transmission control rods.
If  uneven  tracking  persists,  note  which  direction
the tractor is tracking.
Transmission
Drive Pulley
-
If  the   tractor  tracks  to   the  right,  adjust   the
control lever stop bolt on the left side.
Idler
Pulley
-
If the tractor tracks to the left, adjust the control
lever stop bolt on the right side.
Locate the applicable stop bolt on the left or right
console. See Figure 27.
Square
Hole
Drive
Belt
Idler
Bracket
Console
PTO
Pulley
Engine
Pulley
Jam Nut
Idler Brkt.
Spring
Figure 28  
Stop Bolt
Using  the  ratchet   for  leverage,  pivot  the   idler
bracket and idler pulley away from the backside
of the ‘V" belt; then lift the belt off and   above the
engine pulley and off the idler pulley.
With the belt loose, lift the belt off, up and over
the  two  transmission  drive  pulleys.  Remove  the
belt from the engine and idler pulleys.
Figure 27  
Loop  the  new  belt  and  slide  over  and  onto  the
two transmission pulleys.
Loosen the jam nut on the stop bolt, then turn the
stop  bolt   counterclockwise  to   make  it   longer.
Recheck  the  tracking  and  fine  tune  the  adjust-
ment as necessary.
NOTE:  If  the  stop  bolt  is  adjusted  too  far,  the
tracking  problem  will  change   sides.  Make  fine
tuning adjustments by shortening the same bolt.
Route the belt above the idler bracket back to the
engine drive pulley. Lift the belt over the PTO pul-
ley and above the engine drive pulley.
Using  the  ratchet   for  leverage,  pivot  the   idler
bracket  and  idler  pulley  against  the  spring  ten-
sion; then slip the belt down into the engine drive
pulley and onto the idler pulley.
Tighten the jam nut against the console and repo-
sition the control lever if necessary.
Release the idler bracket so that the idler pulley
tightens against the back side of the belt and ten-
sions the drive belt.
Reinstall the deck drive belt.
26
Product Specification
CategoriesLawn Mower Manual, MTD Lawn Mower Manuals, Troy-Bilt Lawn Mower Manuals
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- 36 pages
Document TypeOwner's Manual
LanguageEnglish
Product BrandMTD, Lawn Mower
Product TypeWalk Behind Mower
Document File TypePDF
Publishermtdproducts.com
Wikipedia's PageMTD Products
CopyrightAttribution Non-commercial
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