Sno-Way 22 Series, Инструкция по установке и эксплуатации

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23
Blade lifts slowly
(continuation) Low vehicle battery
voltage Check voltage at both the battery and at the solenoid during function. The
battery may show 12V when the plow is not under load. If the voltage drops
below 9V when operating the plow, trouble shoot power system on your
vehicle.
Plow lifts but does
not hold - New plow
first action Dirt in check valve Cycle raise and lower system to flush debris.
Dirt in lower valve (B) Cycle raise and lower system to unstick valve.
Plow lifts but does
not hold - second
action Dirt or Debris in check
valve Cycle raise and lower system to unstick valve if this does not work replace
valve.
Lower valve (B) stuck Check valve to make sure there in not magnetism on the "B" coil. Remove
the "B" valve and swap it with the "F" valve. If the blade lifts your valve was
stuck open. Replace the valve.
Seals, O-ring(s) on lower
valve (B) damaged Remove the lower valve (B) and inspect the O-rings to see if they are
damaged. If damaged replace the O-ring if there is one available. If not
replace the valve.
Ground available at lower
coil (B) without activation Test the control receiver to see if there is a ground signal sent to the lower
coil (B) without activation. This can be done using a Sno-Way control test
(99101028). If you do not have a test box remove the two wires off of the (B)
coil and check to see if the blue with the white trace wire has a ground signal
coming from it. The control will need to be turned on. Tap the raise function
to make sure the control is not in the float or down pressure mode as this
would send ground to the wire. If the ground is present the receiver (black/
yellow box on snow plow) will need to be replaced. You should also check
the OHM reading on the (B) coil as well as the other coils on the valve block.
If the OHM reading on the (B) coil does not read the same as the other coils
replace the coil as well.
Piston seals leaking
(Internal) on raise cylinder Raise the plow up in the air and support the blade with a hydraulic floor jack.
Remove the hose off of the rod side of the lift cylinder. Slowly lower the floor
jack and watch to see what direction the fluid flows from the lift cylinder. If the
fluid sucks into the lift cylinder the seals are good. If the fluid flows out of the
lift cylinder, fluid is leaking past the seals and the cylinder needs to be
replaced.
Unit will not lower
(Gravity) (Down
pressure off) Plugged breather cap Remove and replace breather cap.
Low or no current
available at lower coil (B) Check wiring harness to make sure the connection had not been severed. If
a ground is present when operated the blue with the white trace wire the coil
may be weak. Swap coil with another coil on the valve block. If the problem
moves to a different function replace coil.
Lower valve (B) sticking
or stuck Swap out the (B) valve with the ( E ) valve. If the plow lowers the valve is
sticking and should be cleaned or replaced.
Lower coil (B) inoperative Check to see if the blue with the white trace wire has a ground signal. If it
does and the coil is not magnetized, the coil needs to be replaced.
Raise cylinder damaged
allowing movement in one
direction only Visually inspect bell crank assembly and lift cylinder. If it is damaged remove
and replace.
TROUBLESHOOTING GUIDE
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION