Toro Multi Pro 1750 Service Manual page 185

Drive Belt Removal (Fig. 2)
1. Park machine on a level surface, stop spray pump,
stop engine and engage parking brake. Remove key
from ignition switch and raise operator seat.
2. Loosen idler pulley flange nut (item 3) and turn ad-
justing screw (item 4) counterclockwise to relieve drive
belt tension. Remove spray pump drive belt from idler
and pump drive pulleys.
3. Locate and retrieve hydraulic pump key (item 8)
4. Loosen two (2) set screws on pump hub (item 7).
5. Remove fasteners securing hydraulic pump assem-
bly (item 9) to engine and pump mounting plate. Slide
pump assembly from pump hub and set aside.
6. Remove drive belt.
Multi Pro 1750
Drive Belt Installation (Fig. 2)
1. Install drive belt over sprockets and under idler pul-
ley.
2. Adjust drive belt tension (see Adjust Spray Pump
Drive Belt in Chapter 6 − Spray System in this manual).
3. Position key into hydraulic pump shaft and apply an-
tiseize lubricant to pump shaft and key.
4. Align pump shaft with hub and install pump to mount-
ing plate with fasteners shown. Tighten pump mounting
fasteners from 27 to 33 ft−lb (37 to 44 N−m). Tighten
two (2) pump hub set screws from 90 to 110 in−lb (10
to 12 N−m).
5. Lower operator seat.
Page 6 − 11 Spray System