Toro Multi Pro 1200 Service Manual page 113

Removal (Fig. 7)
IMPORTANT: Make sure to neutralize and remove
chemicals from pump and hoses before loosening
and removing spray system components. Wear pro-
tective clothing, chemical resistant gloves, and eye
protection during repair.
1. Park machine on a level surface, stop engine, en-
gage parking brake and remove key from the ignition
switch.
2. Loosen hose clamps that secure suction and pres-
sure hoses to hose barbs on pump fittings. Pull suction
and pressure hoses from hose barbs.
3. Remove lock nuts, flat washers, cap screws and
coupling spacers that secure rubber couplings to pump
hub (item 22).
4. Remove flange head screws and flange nuts that se-
cure pump to pump mount bracket.
5. Remove spray pump from machine.
6. Loosen set screws in pump hub. Pull hub from pump
shaft. Locate and remove key from pump shaft.
7. For assembly purposes, matchmark fittings at pump
inlet and outlet to make sure that the fittings will be prop-
erly aligned during pump installation. Also, matchmark
position of tee fitting (pressure) (item 4 in Fig. 9) at elbow
(pressure).
8. Remove pressure dampener, tee fitting (pressure)
and elbow (pressure) from pump outlet (Fig. 9). Discard
removed gasket.
9. Remove suction dampener and tee fitting (suction)
from pump inlet (Fig. 9). Discard removed O--ring and
seal.
Installation (Fig. 7)
NOTE: Coat all O--rings with vegetable oil before instal-
lation to reduce the chance of damage during assembly.
1. Apply thread sealant to threads of elbow (pressure)
and install elbow into pump outlet (Fig. 9). Use match-
mark made during pump removal to properly orientate
elbow.
2. Apply RTV silicone sealant to threads of tee fitting
(pressure) that will thread into elbow (pressure) and
install fitting into elbow (Fig. 9). Use matchmark made
during pump removal to properly orientate tee fitting.
Install pressure dampener (with new O--ring) and hose-
barb (with new gasket) to tee fitting.
Multi Pro 1200/1250
2
1. Elbow (pressure)
8
9
10
14
15
16
17
1. Spray pump
2. Elbow (pressure)
3. O- -ring
4. Tee fitting (pressure)
5. Gasket
6. Hosebarb
7. Nut
8. Hose clamp
9. Pressure hose
10. Pressure dampener
Page 6 - - 13
1
Figure 8
2. Suction hose
RTV Silicone
Sealent
7
6
5
4
3
11
13
12
19
18
Thread
Sealant
Figure 9
11. O- -ring
12. Seal
13. Hosebarb
14. Suction hose
15. Hose clamp
16. Nut
17. Suction dampener
18. O- -ring
19. Tee fitting (suction)
Spray System
Thread
Sealant
2
1