Hitachi NEXT Series Service Manual page 55

■ Tool
(1) Dimensions of the removing tool dimension
• 1st-stage side Part code No : 59031290
Material : SCM415H
Drill through,
2 dia.
Drill through, 1.6 dia.
• 2nd-stage side Part code No : 59031300
Material : SCM415H
Drill through,
2 dia.
(2) O-Ring
Notes
1. This item must be standardized by JIS or SEA AS568.
2. Hardness: Hs 70 ± 5
3. Material: NBR
Model
1st-stage
2nd-stage
(mm)
PS1/4, 15 deep
Pilot hole, 11.5 dia.,
18 deep
Drilled hole, 4 dia.,
90 deep
Drilled hole, 6 dia.,
98 deep
(mm)
PS1/4, 13 deep
Pilot hole, 11.5 dia., 15 deep
Drilled hole, 6 dia.,
110 deep
Part Name Nominal No.
O-ring (1) AS568B-219
O-ring (2) AS568B-120
O-ring (1) AS568B-216
O-ring (2) AS568B-117
53
Confidential to Customer
1. Thermal refining required (quenching at 850°C to 950°C(1562℉ to 1742℉),
tempering at 550°C to 650°C(1022℉ to 1202℉)) Hardness: HRC 32 to 40
2. M16 screws must be machined with a cutting tool.
3. Applicable model: DSP-45/55/75N 1st-stage side
1. Thermal refining required (quenching at 850°C to 950°C(1562℉ to 1742℉),
tempering at 550°C to 650°C(1022℉ to 1202℉)) Hardness: HRC 32 to 40
2. M12 screws must be machined with a cutting tool.
3. Applicable model: DSP-45/55/75N 2nd-stage side
Cross Section A-A
d1 d2 Part Code No.
1.296inch 0.1390inch
(32.92mm) (3.53mm)
0.9870inch 0.1031inch
(25.07mm) (2.62mm)
1.109inch 0.1390inch
(28.17mm) (3.53mm)
0.7988inch 0.1031inch
(20.29mm) (2.62mm))
Detail B (4 : 1)
59013040
59013050
59013060
59013070