Scotchman Porta-Fab 45, Manual, Page: 56 / 80

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8.0 TROUBLE SHOOTING GUIDE
A. IF THE MOTOR WILL NOT START:
1. Make sure that you have the machine plugged into an outlet with adequate power to supply the
machine.
2. Check the wiring connections on the switch and the motor.
B. THE MOTOR RUNS BUT THE MACHINE WILL NOT CYCLE.
1. Check the rotation of the motor. The rotation should be clockwise when viewed from the fan end
of the motor.
2. Check the wiring connections to the valve and the foot switch.
3. Check the level of the hydraulic fluid in the reservoir. The fluid should be approximately 1/2 inch
(12mm) below the top of the reservoir. FOR RECOMMENDED FLUIDS, refer to section 5.0.
C. THE MOTOR RUNS BUT THE MACHINE LACKS POWER.
1. Make sure that the electrical supply lines to the machine are of adequate gauge and length. FOR
FOR RECOMMENDED SIZES, REFER TO SECTION 4.4.
2. The problem may be mechanical. Make sure that all grease fittings have been well lubricated.
3. REFER TO SECTION 8.2 ON HYDRAULICS BELOW.
8.2 HYDRAULIC
THE MOST COMMON HYDRAULIC PROBLEMS ARE:
1. Low level of hydraulic fluid in the reservoir: The reservoir holds 2 U.S. gallons (7.6 liters). The
level should be 1/2 inch (12mm) below the top of the reservoir.
2. Low pressure caused by worn or damaged parts in the cylinder or pump: There is a pressure port
provided on the machine to check the system pressure. The pressure port is in the fitting in the
top port of the cylinder. A pressure gauge with a minimum of three thousand (3,000) P.S.I. (207
BAR) is required. With the machine’s power off, install the pressure gauge. Power the machine
and cycle it to the end of the stroke in one direction or the other, watching the gauge for a reading.
The system pressure of this machine is 2,500 P.S.I. (172 BAR). The pressure adjustment is on the
side of the manifold between the motor and the pump. Turning the adjusting screw in should
increase the pressure. If the pressure cannot be adjusted, contact your local dealer or the factory.
CAUTION: NEVER SET THE PRESSURE OF THE MACHINE ABOVE 2,500 PSI (172 BAR).
8.1 ELECTRICAL-MOTOR