Honeywell DC2, DC6, DC3, DC4, DC5 manual Equipment Startup, Fastener Inspection, Output Adjustment

6. Equipment Startup

6.1Fastener Inspection

All pump fasteners should be checked prior to pump operation, and occasionally during use. This would include reagent head mounting bolts, motor mounting bolts, and the hardware that secures the pump to its foundation. Most hardware can be checked simply to ensure it is not loose. However, utilize the following values when checking reagent head bolt torque:

Model	Material		Reagent Head Bolt Torque
		# Bolts and size			N-m	In. - Lbs
DC2	Plastic	(4)	M6	* 1.0	3.39		30
	Metal	(4)	M6	* 1.0	3.39		30
DC3 and 4	Plastic	(4)	M8	* 1.25	6.77		60
	Metal	(4)	M8	* 1.25	6.77		60
DC5	Plastic	(6)	M8	* 1.25	8.46		75
	Metal	(6)	M8	* 1.25	8.46		75
DC6	Plastic	(6)	M8	* 1.25	8.46		75
	Metal	(6)	M8	* 1.25	8.46		75

6.2Output Adjustment

All OMNI® pumps have a hand wheel for manual stroke adjustment. The hand wheel can be adjusted to any point from 0 to 100%. This value represents the stroke length setting and therefore the flow rate of the pump relative to its maximum output.

1.Turn the red lock screw counterclockwise to release the stroke lock. Making adjustments without releasing the lock may damage the mechanism.

2.Adjust the hand wheel to the desired output.

a)The stroke barrel indicates stroke length in 20% increments.

b)The hand wheel indicates stroke length in 1% increments.

For example, to set the pump to 75% stroke length, (starting from the factory default setting of 0%) turn the hand wheel counter clockwise until he 60% indicator is visible on the stroke barrel.

Continue the counter clockwise rotation until the hand wheel indicator is at 15. Refer to Figure 4.

3.Turn the lock screw clockwise to lock the stroke adjustment into position.

Adjustments can be made while the pump is at rest or

operating, although adjustments are easier to make

while the pump is in operation.

Figure 4, stroke adjustment

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