Sno-Way 22 Series - Page 23

22
Blade will not lift
(motor runs)
Hydraulic fluid level low Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Improper main system
pressure relief valve
setting
Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw to the proper main system pressure
for the series of plow. This can be found in the back of your owners manual
or online at SNOWAY.com.
Breather cap plugged Remove and replace breather cap.
Coil on valve (F) Check if there is magnetism on coil (F). If there is not swap coil with the coil
(A). If the problem moves to the angle function the coil is bad and needs to
be replaced.
Lower valve (F) stuck Chck valve to make sure there is magnetism on the ""F"" coil. Remove the
"F"" valve and swap it with the "E" valve. If the blade lifts your valve was
stuck closed. Remove and replace the valve.
Raise cylinder binding Check all linkages in the bell crank area. Replace and damaged
components.
Pick up tube filter plugged Remove hydraulic fluid from the tank. Remove the tank and observe the pick
up tube screen. Clean or replace if necessary.
Worn/failed pump Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw. If the pressure will not raise and the
angle functions work remove hydraulic fluid and tank. Replace pump.
Pick up tube is not
submerged in fluid
Remove hydraulic fluid and tank. Turn pick up tube so it is angled down to
the bottom of the tank.
Down pressure valve (E)
stuck open
Check valve to make sure there in not magnetism on the "E" coil. Remove
the "E" valve and swap it with the "F" valve. If the blade lifts, your valve was
stuck open. Replace the valve.
Raise Valve (C) not
functioning
Check "C" coil for magnetism. Remove the "C" valve and inspect. Make sure
the lower part of the valve moves free and there is no debris causing the
valve to stick. If stuck and cant be freed up replace valve.
Blade lifts slowly Hydraulic fluid level low Fill hydraulic fluid up to the fill line on the reservoir using Sno-Way hydraulic
fluid.
Breather cap plugged Remove and replace breather cap.
Improper main system
pressure relief valve
setting
Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw to the proper main system pressure
for the series of plow. This can be found in the back of your owners manual
or online at SNOWAY.com.
Pick up tube filter plugged Remove hydraulic fluid from the tank. Remove the tank and observe the pick
up tube screen. Clean or replace if necessary.
Improper oil viscosity for
outside air temperature/
Ice in hydraulic tank
Change oil with Sno-Way hydraulic fluid.
Weak system pump Using a 3000 psi gauge plumbed into the gauge port (GP), run plow over
relief. Adjust main pressure relief screw. If the pressure will not raise and the
angle functions work remove hydraulic fluid and tank. Replace pump.
(continued)
TROUBLESHOOTING GUIDE
PROBLEM PROBABLE CAUSE CORRECTIVE ACTION