Oracom MAX 695 dimensions Intermediate Problem Solving

Basic Problem Solving

TYPE OF	WHAT TO CHECK		WHAT TO DO
PROBLEM	If check is OK, go to next check		When check is not OK, refer to this column
	11.	Motor thermal cutout switch. Connect ohmmeter between	11.	Allow motor to cool. Correct cause of
		motor yellow leads. Meter must read 1 ohm maximum.		overheating. If switch remains open after
				motor cools, replace motor.
	12. Pressure transducer (67) by replacing it with a new one.		12. Replace pressure transducer.
				See page 16.
	13. Pressure adjustment potentiometer (77) by replacing it		13. Replace potentiometer. See page 14.
		with a new one.
		Intermediate Problem Solving
TYPE OF	WHAT TO CHECK		WHAT TO DO
PROBLEM	If check is OK, go to next check		When check is not OK refer to this column
Low output	1.	For worn spray tip.	1.	Follow Pressure Relief Procedure
				Warning on page 3, then replace tip.
				See your separate gun or tip manual.
	2.	Verify pump does not continue to stroke when gun trigger	2.	Service pump. See page 11.
		is released. Plug in and turn on sprayer. Prime with paint.
		Trigger gun momentarily, then release and engage safety
		latch. Relieve pressure, turn off and unplug sprayer.
	3.	Release gun trigger. Observe resting position of pump rod	3.	If pump consistently comes to rest
		(222).		with rod (222) fully extended, the piston
				packings and/or piston valve may be
				worn. Service pump. See page 11.
	4.	Electrical supply with volt meter.	4.	Reset building circuit breaker; replace
		Meter must read 90–110 VAC for 232916, 232917.		building fuse. Repair electrical outlet or
		Meter must read 105–125 VAC for 232910 – 232913,		try another outlet.
		232919
		Meter must read 210–250 VAC for 232918, 232915,
		232914.
	5.	Extension cord size and length; must be at least 12 AWG	5.	Replace with a correct, grounded exten-
		(1.5 mm2) and no longer than 300 ft (90 m).		sion cord.
	6.	Motor brushes. See Electrical – What To Check, item 4, on	6.	See page 10.
		page 5.
Low output	7.	Motor control board (22a) by substituting with a good	7.	Replace board. See page 13.
(continued)		board.
		CAUTION: Do not perform this check until motor armature
		is determined to be good. A bad motor armature can burn
		out a good board.
	8.	Motor armature for shorts by using an armature tester	8.	Replace motor. See page 12
		(growler) or perform motor test. See page 9.		.

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