Corken 91 - Model 491 and F491

7
8
9
30
10
11
12
13
103
14
8
24
25
26
27
17
18
103
19
18
19
18
19
20
28
29
14
8
15
16
17
20
21
14
8
15
22
20
17
23
14
7
8
9
30
10
11
12
13
101
14
7
8
9
30
10
11
12
13
102
14
Suction
Spec 3
Suction
Spec 4
Discharge
All Specs
Suction Valve
Spec 3
Suction Valve
Spec 4
Discharge Valve
All Specs
101 102
5
4
Suction
Discharge
4
4
6
5
1
3
5
Suction
Discharge
6
5
2
3
4
4
4
Valve Holddown Assemblies491 Head Assembly
F491 Head Assembly
Valve Assemblies
Appendix E—Parts Details for 491 and F491 Head and Valve Assembly
WARNING
CAUTION: Always relieve pressure in the
unit before attempting any repairs.
Model 491 and F491
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