Troy-Bilt RZT SERIES ZT42 - Manual (Page 30)

30 s
ectiOn
7— s
ervice
Deck Installation
To install the mower deck, proceed as follows:
While holding the deck front hanger rod upward, carefully 1.
slide the deck underneath the right side of the tractor.
While still holding the front hanger rod, slide the deck
2.
forward until the front hanger rod can be lowered into the
slots of the front deck bracket.
Lower the front hanger rod into the slots of the front deck
3.
bracket, then slide the deck rearward.
Maneuver the deck so that the slots in the two rear deck
4.
hanger brackets approximately align with the deck lift arms
of the tractor. Refer to Fig. 7-5.
Use the tractor deck lift handle to lower the deck lift arms
5.
into the slots of the rear deck hanger brackets.
Pull the deck support pins outward and maneuver the deck
6.
as necessary to align the holes in the deck lift arms with the
pins. Refer to Fig. 7-5.
When aligned, push each pin fully inward through the lift
7.
arms to secure the arms in the rear hanger bracket slots.
Make certain the ‘V’ belt is in the spindle pulleys on the
8.
deck; then route the belt rearward beneath the tractor
frame, above the transmission tube(s), to the PTO pulley on
the bottom of the engine.
Install the ‘V’ belt onto the PTO pulley using one of the
9.
following two methods.
WARNING! The muffler at the rear of the tractor
may be extremely hot, and could cause serious burns.
Use extreme caution when near the muffler. Allow
the muffler to fully cool before installing the belt.
Using the Idler Pulley to Tension the Belt.
Using the deck lift handle, raise the deck to the position that 1.
provides the most horizontal run of the belt between the deck
idler pulleys and the PTO pulley on the bottom of the engine.
Install the belt in the PTO pulley on the bottom of the engine.
2.
Route the backside of the belt around the fixed idler pulley 3.
of the deck. Refer to Fig. 7-3.
Working from the middle of the tractor, pivot the idler
4.
bracket/movable pulley rearward against the spring
tension and slide the backside of the belt onto the movable
idler pulley. Refer to Fig. 7-3.
Rolling the Belt into the PTO Pulley.
Using the deck lift handle, raise the deck to the position that 1.
provides the most horizontal run of the belt between the deck
idler pulleys and the PTO pulley on the bottom of the engine.
Make certain the belt is in the spindle pulleys of the deck,
2.
and that the backside of the belt is against both the fixed
and movable idler pulleys. Refer to Fig. 7-3.
Sitting behind the tractor, facing forward, make certain the
3.
belt is not twisted; then reach beneath the tractor to grasp
the belt and pull it toward the PTO pulley.
WARNING! Use caution to avoid pinching your
fingers when rolling the belt onto the PTO pulley.
Pull the right side of the belt rearward and place the 4.
narrow V side of the belt into the PTO pulley. See Fig. 7-4.
While holding the belt and pulley together, rotate the
5.
pulley to the left (See Fig. 7-4). Continue holding and
rotating the pulley and belt until the belt is fully rolled into
the PTO pulley.
Replacing the Deck Drive Belt
Remove the deck from beneath the tractor, (refer to Deck 1.
Removal on page 29).
Remove the hex washer screws securing the belt covers
2.
to the deck and remove the belt from the spindle pulleys.
Refer to Fig. 7-6.
Install the new belt around the spindle pulleys as shown in 3.
Fig. 7-6 and reinstall the belt covers.
Route the belt rearward between the two idler pulleys and
4.
reinstall the deck following the instructions in Deck Installation.
Mower Blade Care
WARNING! Before performing any maintenance,
place the PTO switch in the “OFF” position, engage the
parking brake lever, turn the ignition key to the “OFF”
position and remove the key from the switch. Protect
your hands by using heavy gloves when handling the
blades. When servicing the mower deck, be careful not
to cut yourself on the sharpened blades.
The cutting blades must be kept sharp at all times. Sharpen the
cutting edges of the blades evenly so that the blades remain
balanced and the same angle of sharpness is maintained.
If the cutting edge of a blade has already been sharpened many
times, or if any metal separation is present, it is recommended
that new blades be installed. New blades are available at your
authorized dealer.
The blades may be removed as follows.
Remove the deck from beneath the tractor, (refer to Deck 1.
Removal on page 29) then gently flip the deck over to
expose its underside.
Hex
Washer
Screw
Belt Cover
Spindle
Pulleys
Belt
Belt Cover
Hex
Washer
Screw
Figure 7-6