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INSTALLATION AND OPERATION MANUAL, GAS SKILLETS, MODELS GMTS-(30, 40, 60)
HYDRAULIC SYSTEM (Continued)
6. Check the cleanliness of the oil strainer inside the reservoir once per year. This item can be
washed in clean Varsol.
7. Change the breather filter once per year.
8. Change the oil once every two years.
ADJUSTMENTS AND CONTROLS:
ADJUST PAN SPEED
There are three controls available on this power unit. The first is an adjustable relief valve
mounted into the custom aluminum manifold block. The other two control the linear speed of
the actuator.
RELIEF VALVE:
The relief valve is located underneath an aluminum hexagon cover on the side of the custom
manifold block. This relief valve is factory set to 825 P.S.I. and locked and should not be
adjusted.
If adjustments are necessary, remove the hexagon cover which will give access to the relief
valve screw. With the pump running, and with a suitable flat blade style screwdriver, rotate the
screw clockwise to increase pressure, and anti clockwise to decrease pressure. While this
operation is being carried out some oil will leak down the threads of the adjusting screw.
To obtain the pressure required, a pressure gauge will have to be located in the circuit. The
best location is on the cylinder hose. To set the pressure, energize the solenoid to extend the
cylinder fully and thus "deadhead" the system. The pressure can be set as indicated above.
When adjustment is complete, replace the hexagon cover. This will seal the relief valve area.
The actual factory set pressure is noted on the label and should not be exceeded as this affects
the HP draw on the electric motor.
Part No. 10094R2
16
2019-01-16
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