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Repair
Replace Solenoid Inlet Air Regulator (644)
1. Remove Control Box Shrouds, see page 19.
2. Remove Air Control Assembly (18), see page 19.
3. Disconnect air line from air regulator (644).
4. Remove gauge (616) from block (643).
5. Remove screws from quick clamps (642) holding air
regulator assembly (644) in place.
617
613
626
619
638
635
618
630
640 631
F
. 1: Air Control Assembly (18)
IG
20
*177
*160
607
641
643
603
642
632
637
636
632
625
628
629
633
627
618
627
6. Open clamps (642) at hinge and pull apart from
block (643).
7. Remove regulator assembly (644) and replace with
new.
8. Follow steps in reverse order to reassemble.
9. Set new air pressure regulator to at least 80-85 psi
(0.55-0.58 MPa, 5.5-5.8 bar).
*161
616
644
608
610
611
Ref. 27
645
642
643
629
633
643
606
621
622
635
620
634
*
Hazardous location only.
609
612
647
646
604
642
641
615
613
617
3A8047B
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