Multi Pro 1200/1250 Page 6 -- 29 Spray System
Removal and Inspection (Fig. 27)
IMPORTANT: Make sure to remove and neutralize
chemicals from spray components before disas-
sembly. Wear protective clothing, chemical resist-
ant 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. Remove master boom valve handle, spray control
panel and spray console from machine (Fig. 28).
3. Loosen and remove nut that secures flow sensor to
housing (Fig. 29). Carefully remove flow sensor from
flowmeter housing.
4. Clean rotor, rotor shaft and flowmeter sensor if re-
quired (see Operator’s Manual).
5. With the flow sensor harness connected to the ma-
chineandtheignitionkeyintheONposition,slowlyspin
theflowmeterrotor.The LEDon theflowmetershouldil-
luminate as a rotor magnet passes the flow sensor and
should go out as the next rotor magnet passes the sen-
sor.
NOTE: When using a magnet to check the flowmeter,
makesure toalternately useboth northandsouthpoles
of the magnet.
6. If the flowmeter LED does not flash, remove rotor
androtorshaftfroms ensor.Withtheflowmeterharness
connectedtothemachineandtheignitionkeyintheON
position, slowly pass alternate poles of a magnet past
the flow sensor. If the flowmeter LED flashes as the
magnetpoles pass the sensor, replace therotorandro-
torshaft.IftheflowmeterLEDdoesnotflashasthemag-
net poles pass the sensor, replace the flow sensor.
7. If necessary, remove flowmeter housing using Fig-
ures27and 29 as guides(alsosee Spray Control(Multi
Pro 1200) in this section). Discard all removed O--r ings
and gaskets.
Assembly (Fig. 27)
NOTE: CoatallO--ringswithvegetableoilbeforeinstal-
lationtoreducethechanceofdamageduringassembly.
NOTE: When installingflowsensor into housing,make
suretoalignlocatingpinonsensor withhole inhousing.
1. Assemble flowmeter using Figures 27 and 29 as
guides. Replace all removed O--rings and gaskets.
2. Operatespraysystemandcheckforleaks.Repairall
leaks before returning the sprayer to service.
3. Installsprayconsole,spraycontrolpanelandmaster
boom valve handle to machine (Fig. 28).
1. Boom valve handle
2. Spray console panel
3. Spray console
Figure 28
1
2
3
1. Flowmeter assembly 2. Hose to boom valves
Figure 29
1
2
FRONT
1. Rotor shaft
2. Rotor
3. Rotor magnet
Figure 30
1
2
3
3
Spray
System
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