Hitachi NEXT Series Service Manual page 44

Oil-free screw compressor
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■ Replacement Parts
When re-assembling, the parts shown in Table 1
must be replaced with new ones.
Table 1 Air cylinder replacement parts list
Valve sheet of blowoff valve piston
40615070 × 1
Fluorine-containing rubber
A : 1.97inch(50mm)
B : 0.59inch(15mm)
C : 0.20inch(5.0mm)
Seal gasket (1) (5)
24215150 × 3
Fluorine-containing rubber
A : 1.50inch(38mm)
B : 1.18inch(30mm)
C : 0.26inch(6.5mm)
Seal gasket (2) (4)
24215160 × 2
Fluorine-containing rubber
A : 1.57inch(40mm)
B : 1.18inch(30mm)
C : 0.26inch(6.5mm)
Seal gasket (3)
24215180 × 2
Fluorine-containing rubber
A : 3.94inch(100mm)
B : 3.35inch(85mm)
C : 0.37inch(9.5mm)
O-ring
45915201 × 2
Fluorine-containing rubber
A : 3.88inch(98.53mm)
B : 3.74inch(94.97mm)
C : 0.070inch(1.78mm)
Seal washer
24215340 × 1
A : 0.55inch(14mm)
B : 0.23inch(5.8mm)
C : 0.05inch(1.3mm)
O-ring
24215371 × 1
Fluorine-containing rubber
A : 1.20inch(30.6mm)
B : 0.96inch(24.4mm)
C : 0.12inch(3.1mm)
O-ring
24215390 × 2
Fluorine-containing rubber
A : 0.26inch(6.6mm)
B : 0.11inch(2.8mm)
C : 0.07inch(1.9mm)
42
Confidential to Customer
C
φA
φB
C
B
A
C
φA
φB
O-ring (2)
40615490 × 2
Fluorine-containing rubber
A : 2.03inch(51.5mm)
B : 1.87inch(47.5mm)
C : 0.08inch(2.0mm)
O-ring (1)
45kW-100/125psi(7k/9k),
55kW-125psi(9k)
45915620 × 1
Fluorine-containing rubber
A : 2.62inch(66.5mm)
B : 2.46inch(62.5mm)
C : 0.08inch(2.0mm)
45kW-100psi(7k),
75kW-100/125psi(7k/9k)
40615500 × 1
A : 2.58inch(65.6mm)
B : 2.34inch(59.4mm)
C : 0.12inch(3.1mm)
Backup ring
5372F280 × 1
PTFE
A : 1.30inch(33mm)
B : 0.98inch(25mm)
C : 0.04inch(1.0mm)
C-shaped snap ring
Retaining ring
5372F270 × 1
SUS304
A : 1.29inch(32.8mm)
B : 1.10inch(27.9mm)
C : 0.06inch(1.6mm)
STV cover gasket
59007890 × 1
Non-asbestos rubber
A : 10.04inch(255mm)
B : 7.48inch(190mm)
C : 0.04inch(1.0mm)
Air end air intake gasket (1)
54005120 × 1
Non-asbestos rubber
A : 7.87inch(200mm)
B : 5.51inch(140mm)
C : 0.04inch(1.0mm)
Air cylinder gasket
40615110 × 1
Non-asbestos rubber
A : 6.30inch(160mm)
B : 4.76inch(121mm)
C: 0.03inch(0.8mm)

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