Troy-Bilt rzt mustang zt50 用户手册

Using the deck lift handle, raise the deck to the  position 

1. 

that 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.

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.

Remove the deck from beneath the tractor, (refer to Deck 

1. 

Removal on page 29).
Remove the hex tapping 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 

4. 

and reinstall the deck following the instructions in Deck 
Installation on page 30.

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.

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 deck lift handle, raise the deck to the  position 

1. 

that 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 

2. 

engine.
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.