Hitachi NEXT Series Service Manual page 61

Oil-free screw compressor
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Suction
4
[Fixed speed type]
532
508
506
534
507
535
509
522
516
515
504
F28
569 ( ※2)
551 ( ※2)
512
502
513
550
540 ( ※1)
510 ( ※1)
539
505
521
522
519
520
503
536
525
541
540
542
515
526
514
574
529
530
511
501
500
554
513
518
518
517
520
537
F27
512
558
559
513
502
F44
512
59
Ref.
Description
No.
500 Suction Throttle Valve Assembly
501 Air Cylinder Assembly
502 Body, STV
503 Tube, air cylinder
504 Cover (1)
505 Cover (2)
506 Piston, blowoff valve
507 Valve Sheet, blowoff valve piston
508 Plate
509 Spindle, air cylinder
510 Rod Metal
511 Gasket, air cylinder
512 Gasket (1), air end air intake
513 Gasket, STV cover
514 Valve Plate, STV
F44
515 Seal Gasket (1)
516 Seal Gasket (2)
517 Piston, air cylinder
518 Seal Gasket (3)
519 Seal Gasket (4)
520 O-Ring, air cylinder
521 Seal Gasket (5)
522 Bush, air cylinder
525 Tying Rod, air cylinder
512
526 Cover, air cylinder
529 Spring Washer (SUS)
554
530 Rod Nut
513
532 Body, blowoff valve
534 Seal Washer, air cylinder
535 Nut
536 Wave Spring
537 O-Ring (piston)
538 O-Ring (spacer)
539 O-Ring (needle)
540 O-Ring (2), air cylinder
541 Holder, piston
542 Spacer
550 O-Ring (1), air cylinder
551 Set of Air Cylinder Consumable Parts
554 Unloader Cover (1)
558 Adjusting Bolt, suction bypass valve
559 Seal Washer, suction bypass valve
569 Grease, air cylinder
574 Valve Plate, STV
F27 C-type Snap Ring
F28 Backup Ring
F44 Air Intake Duct
※1 Only for 55 kW-7K and 75 kW.
※2 Does not come with the
product.
Ref.
Description
No.
500 Suction Throttle Valve Assembly
502 Body, STV
512 Gasket, air end air intake
513 Gasket, STV cover
554 Unloader Cover
F44 Air Intake Duct

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