Multi Pro 1200/1250 Page 6 -- 35 Spray System
2. Separate boom distribution valves:
A. Remove forks (item 4) that secure distribution
valves together.
B. Remove hex nut from one end of threaded rod.
C. Pull threaded rod from assembly and separate
components.
3. Remove fork (item 8) to separate individual distribu-
tion valves from housings.
4. Remove and discard O --r ings and seals.
Distribution Valve Service (Figs. 37 and 38)
1. Removecapscrewandwashertoallows eatassem-
blies to be removed from shaft. Each seat assembly in-
cludes two (2) O--rings.
2. Theseatassembliesallowthespindletoshutoffflow
tothesprayboom.Ifboomnozzles leakwhen theboom
is shut off, the seat and seat O--rings should be in-
spected carefully. The seats should be free of nicks or
worn spots.
3. Press pin from handle to remove handle from shaft.
4. Take note of washer, spring, retaining ring (not pic-
tured) and O--ring locations as shaft is removed from
housing.
5. Assemblevalveinreverseorderofdisassembly.Ap-
ply Loctite #243 (or equivalent) to threads of cap screw
and torque cap screw to 45 in--lb (5 N--m).
Assembly (Fig. 35)
NOTE: CoatallO--ringswithvegetableoilbeforeinstal-
lationtoreducethechanceofdamageduringassembly.
1. Replace O--rings and seals that were removed dur-
ing disassembly.
2. Securedistributionvalvestohousingswithfork(item
8).
3. Position distribution valves, tee fitting, O--rings and
coverstogether.Slidethreaded rodwithO--rings, bush-
ingandwashersthroughdistributionvalves and secure
with hex nuts.
4. Install forks (item 4) to secure distribution valves to-
gether.
5. Install boom distribution valve assembly to machine
(see Spray Control (Multi Pro 1200) in this section).
1. Boom distribution valves
2. Boom bypass valve
3. Boom bypass hose
Figure 36
1
2
3
FRONT
1. Distribution valve
2. Bypass valve
3. O--ring
4. Handle
5. Pin
Figure 37
1
2
3
4
5
1. Cap screw and washer
2. Seat assembly (2 used)
3. Seat components
4. Retaining ring location
Figure 38
45 in--lb
(5 N--m)
1
2
3
4
Spray
System
To Next Page
Loading...
