Setup

Air Motor Position

The air motor position must be set for the mix ratio of the machine, which is defined by which two pumps are mounted.

1.Verify that the correct pumps are mounted for your mix ratio by volume. See chart in Bare Proportion- ing Pump Packages on page 11.

2.Verify that the motor position is adjusted correctly for that mix ratio.

indicator line

indicator line

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FIG. 6: Ratio indicators

Position Air Motor

There are specific positions for each fixed ratio setting. To adjust the position of the air motor:

1.Loosen the eight fasteners and remove the two pump guards.

fastener

pump guard

fastener

pump guard

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2.Place wrench on adapter rod (104).

3.Use tool (70) to loosen the serrated yoke nut (V) above the yoke (T).

104

V

T

r_571101_3a0420a_2a-2

4. Loosen the three nuts (P2) below the motor tie rods.

E

piston rod

V

P2

T

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5.Grab the piston rod and slide the position of the motor (E) until the indicator lines are aligned with your ratio. See FIG. 6.

NOTICE

Do not hit tie rods (P) with a steel hammer. Damage to the air motor base may result.

6.Tighten the three nuts (P2) and yoke nut (V). Use tool (70) to tighten the yoke nut.

7.Install the pump guards.

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3A0420H

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Graco XP70 important safety instructions Air Motor Position, Position Air Motor