Graco LineLazer IV 200HS Repair And Parts List page 11

PROBLEM
Distance counter not operating properly
Mils not calculating
Fluid spray starts after spray icon is
shown on display
Fluid spray starts before spray icon is
shown on display
Spray icon does not show on display
when fluid is sprayed
Spray icon is always shown on display
Pressure control knob does not rotate
Pressure control knob rotates freely with
no pressure change
Engine bounces when striping
Troubleshooting
CAUSE
Trigger sensor not set correctly
Bad wiring connections
Distance sensor not spaced correctly
from gear
Distance and gear not aligned
Gear teeth missing or damaged.
Wire cracked or broken
Distance sensor
Trigger sensor
Gallon counter
Bad or damaged control board
Interrupter (164) is improperly positioned
Interrupter (164) is improperly positioned
Loose connector
Interrupter (164) is improperly positioned
Reed switch assembly (18) is damaged
Magnet on assembly (18) is missing
A connector on wiring harness or on
reed switch (18) is damaged
Cut or sliced wire
Control board is damaged
Display is damaged
Interrupter (164) is improperly positioned
Reed switch assembly (18) is damaged
Knob is jammed
Remote cable broken or disconnected
Spring is broken, loose or missing
SOLUTION
See "Spray icon does not show on dis-
play when fluid is sprayed"
Check connector, and reconnect
Adjust space between sensor and gear
to .050 --/+ .020 in. (page 15.)
Remove tire, and press in or pull out
gear to align sensor and gear.
Replace distance gear/wheel
Replace sensor
See "Distance counter not operating
properly"
See "Spray icon does not show on dis-
play when fluid is sprayed"
See "Gallon counter not working"
Replace control board
Turn screw counterclockwise until spray
icon synchronizes with fluid spray
Turn screw clockwise until spray icon is
synchronized with fluid spray
Check that 5-pin connector and reed
switch are properly connected
Turn screw counterclockwise until spray
icon synchronizes with fluid spray
Replace reed switch assembly (18)
Replace reed switch assembly (18)
Disconnect reed switch and 5-pin con-
nector from back of control board.
Check continuity between pin 1 on 2-pin
connector and pin 1 on 5-pin connector.
Check continuity between pin 2 on 2-pin
connector and pin 4 on 5-pin connector.
If there is no continuity in either case,
replace wiring harness.
If there is continuity in both cases re-
place reed switch assembly (18).
Replace wiring harness.
Replace control board
Replace display
Turn screw clockwise until spray icon is
synchronized with fluid spray
Replace reed switch assembly (18)
Pull back cover where remote cable con-
nects to hydraulic pump and turn counter
clockwise (ccw) until free
Replace or reconnect cable
Replace or reconnect spring
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