Sumitomo Marathon CP-8 - PARTS LISTING; PART IDENTIFICATION AND ORDERING

PARTS
63
Ordering
The nameplate fastened to the cold head's motor housing identifies the cryopump as follows:
Model Number
Part Number
Serial Number
Date of Manufacture
Furnish this complete information when ordering parts. Also, order parts by part number and
name. Refer to the next section for Parts Identification and Numbers.
Parts Identification and numbers
Parts common to all Marathon
®
CP-8 Cryopumps.
Item
Part Name
Quantity
Part Number
1
O-ring, cold head warm flange to vacuum enclosure 1 77068
2
Inlet louver 1 259541C
3
First-stage cryopanel 1 259594C
4
Second-stage cryopanel service kit 1 F260862A
Kit includes:
Second-stage cryopanel
Indium gasket, inlet louver
Indium gasket, first-stage heat station
Indium gasket, second-stage heat station
1
4
1
2
260862D
259602B
260866B
254986B
5
Single silicon diode temperature sensor assembly, 4
pin, standard
1 253995C2
6
Relief valve, elbow, including relief valve and
O-ring for relief valve seat
O-ring for relief valve body
1
1
1
262889A2
77213
77212
Optional Parts for all Marathon
®
CP-8 Cryopumps.
7
Metal seal, Helicoflex, between the cold head’s warm
flange and the vacuum enclosure.
1 77204
8
Dual silicon diode temperature sensor assembly, 10
pin, for use with a Marathon
®
Cryopump Controller
1 266686A1
9
Hydrogen vapor bulb temperature sensor, bottom
mount
1 263387C
1
0
Vent adapter for relief valve 1 260936B
(Optional parts are continued on the next page.)