NOTE: PROTECTION AGAINST RUST AND CORROSION
When the power unit is not used for extended periods, protect the chromed lift piston fully extending and coating it with chassis lubricant. Coat the exposed portions of the power angling cylinder rods with chassis lubricant to protect against corrosion.
Post-Season Summer Maintenance
1.Draining & Replacing Meyer M-1 Hydraulic Fluid
Drain fluid through drain hole in base, shown in Figure a 0-3, by completely retracting cylinder lift position and unbolting unit to pour fluid out, or use a suction pump. Disconnect the fittings at the Power Angling cylinders, completely retract the cylinder rods and purge cylinders and hoses of all hydraulic fluid. The complete hydraulic system should then be flushed out with clean mineral spirits or hydraulic oil before adding new Meyer M-1 Hydraulic Fluid.
2.Screen-Type Filters - Clean the filters (all models) with mineral spirits or equivalent and blow out with compressed air. See Figure 0-3.
3.Diamond Hydraulic Fluid M-1is specially formulated with an anti-ice additive for almost constant viscosity in subzero temperatures. Because it is free-flowing in extreme cold, the unit's performance and efficiency are not affected by winter weather. It is effective for a maximum of one year. Always carry an extra quart of Meyer Hydraulic Fluid M-1or equal fluids. Use of any inferior fluids will void the Diamond warranty.
4.Refill power unit with Meyer Hydraulic Fluid M-1by fully retracting lift piston and filling reservoir to 1 1/2’’ below the filler hole. Fill and bleed hoses and Power Angling cylinders by loosening hydraulic fittings at cylinders until they leak. Power angle the plow repeatedly from one side to the other until fluid flows steadily from the fittings while maintaining a constant check on the reservoir fluid level. The filling end of the cylinder should be higher than the piston end to facilitate removal of air. Raise and lower the plow several times. With lift rod fully retracted check fluid level and replace filter plug.
SNOWPLOW STORAGE
1.When snowplow is disconnected, extend lift cylinder to end of stroke and coat chrome rod with light grease. This fills the cylinder with hydraulic fluid and protects the interior and exterior from rust and corrosion.
2.Whenever Moldboard is disconnected, coat the exposed portions of the power angling cylinder chrome rods with light grease to protect them from corrosion.
3.Be sure to reconnect quick couplers to keep them clean and prevent contamination of the system.
4.Coat all pivot pins and other wear points with chassis lubricant.
5.Unplug all electrical connections at power unit. Coat all connections with a dielectric compound to prevent corrosion and plug into their corresponding weather plugs. Unplug the snowplow lights, tape or use a dielectric compound at light connections to prevent corrosion.
6.Remove PULL-AWAY™ lift frame module from vehicle. Liberally coat insides of frame receiver tubes and ends of lift frame with chassis grease/anti-seize lubricant. Protect frame receiver tubes from dirt and other types of contamination by installing the receiver tube caps when the lift frame is removed from the vehicle
7.WARNING: Lift arm extends beyond bumper of vehicle. To minimize damage from a front-end collision, lift arm should be removed from vehicle when snowplow is removed.
| Filler Hole and | E-60H |
| Relief Valve |
| |
| Pressure Relief Valve | E-57H |
| Grounding Point |
| “B” Solenoid | |
| (red wire) | Motor |
| “C” Solenoid |
| |
| (green wire) | Right Angle |
| “A” Solenoid |
| Lower Adjustment |
| (black wire) |
| Cross-over Relief | Angle Left |
| FIGURE 0-3 |
| Valve |
