3M 39600 manual Troubleshooting

Troubleshooting (Continued)

Troubleshooting Guide
Problem	Cause	Correction
Upper drive assembly does not	Lower air pressure	Disconnect the air supply. Make
move up or moves up slowly		sure main pressure regulator reads
		zero. Reconnect air supply and
		adjust regulator to read 70 PSIG
		[5 bar].
	Defective head raising valve	Clean or replace head raising
		valve
	Worn head raising valve actuator	Replace valve
	Clogged or damaged exhaust	Clean or replace exhaust mufflers
	mufflers on the upper ends of the
	head raising cylinders
	Defective head power valve	Clean or replace the head power
		valve
Upper taping head does not move	Upper drive assembly force	Adjust the upper drive assembly
down at the end of the taping	adjust regulator set too light	force adjust regulator to increase
cycle		the force against the top of the
		box. Turn air regulator
		counterclockwise.
	Defective top drive assembly	Replace regulator
	force adjust regulator
	Defective one-way valve	Clean or replace valve
	Defective head power valve	Clean or replace valve
Upper drive assembly comes	Upper drive assembly force	Adjust upper drive assembly force
down too fast or too hard	adjust regulator set too heavy	adjust regulator to decrease force
		against top of box. Turn regulator
		clockwise.
	Defective upper drive assembly	Replace regulator
	force adjust regulator
	Cushion screw misadjusted	Adjust cushion screw at base of
		cylinder
	Cushion screw missing	Replace screw
Centering guides move slower	Centering guide force adjust	Adjust regulator
than normal	regulator set too low
	Centering guide cylinder speed	Adjust speed controls mounted on
	controls not in correct adjustment	centering guide cylinder
	Defective centering guide power	Clean or replace valve
	valve

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