Becker HPP-5 High Pressure Positioner Maintenance and Operation Manual | 8
© 2014 General Electric Company. All rights reserved.
Model HPP-5 Single-Acting Positioner Annual Maintenance Checklist
1� ________ Soap test all diaphragm mating surfaces to check for leaks�
2� ________ Replace rubber goods using Becker Model HPP-5 Single-Acting Positioner Repair Kit (Part # 30-9601) if
necessary�
3� ________ Confirm power gas supply pressure is correct� Refer to original GE invoice paperwork for
proper power gas setting�
4� ________ Observe operation of gages and replace if defective�
5� ________ Check integrity of HPP-5 positioner seats� Varying input signal 1 psig should send one cylinder
output gauge to full power gas� Refer to Procedure 7, page 5�
6� ________ Check response of HPP-5 positioner� Varying input signal 1/4 psig should produce cylinder
output gauge differential equal to 40 percent of power gas� Refer to Procedures 6-8, page 5�
7� ________ Check range and bias of HPP-5 positioner and adjust if necessary� Refer to page 6�
8� ________ Inspect and verify proper operation of all HPP-5 positioner accessories� Refer to technical
manual included with each specific instrumentation accessory for further instruction�
NOTE: It is not necessary to replace any rubber goods in Becker instrumentation or instrumentation accessories on a regular basis�
However, common practice suggests that replacement of rubber goods on a five-year cycle basis provides adequate preventative
maintenance�
Parts Ordering
The following is provided to allow the ordering of replacement parts� Please specify the Becker instrument serial
number when ordering parts (this can be found on the stainless steel tab attached to the pilot by the 7/16 hex
head cap screws� If the instrument was supplied as a complete valve regulator package, the stainless tag attached
to the actuator piston also can provide the serial number�
Key
Description
Part No.
1
Pilot base
30-7005
2
Lexan Cover
25-1034
3
Adjusting Drum
35-1520
4
Washer
25-1016
5
Inside piston
35-1507
6
Orifice Assembly
35-1015
7
Seat Cover
35-1519
8
1/2-20 Jam Nut
98-3056
9
Beam Adjusting Drum
25-1124
10
Diaphragm
25-1213
13
1/8 Roll Pin SS
98-2950
14
8-32 x 1” SHCS
98-3144
15
Beam Block
25-1086
16
Outside piston
25-1018
17
3/16 x 1/2 Roll Pin SS
98-3089
18
1/4-20 x 2-1/2 HHCS
98-3180
19
Gauge Manifold
35-1013
20
O-Ring –012
95-2615
21
1/4-28 Jam Nut
98-3214
22
Diaphragm w/ Con-
volute
25-1027
23
Beam Spacer
30-7055
24
1/4-20 x 1” HHCS
98-2579
25
3-15 pressure car-
tridge
25-1082
Key
Description
Part No.
26
5-40 x 1/4 SHCS
98-2629
27
1/4-20 x 3/4 SHCS
98-3137
28
8-32 x 1/2 SHCS
98-2614
29
Pilot Post S�S�
35-1521
30
Double pilot Body
35-1504
31
Valve Adjusting Screw
35-1517
32
Balance valve as-
sembly
35-1510
33
Seat assembly
01-7082
34
S�S� Control tag
25-1061
35
10-32 x 3/8 FHMS
98-2684
36
#10 Lockwasher
98-3178
37
Strainer for Balance
valve
35-1559
38
Seat Spacer
35-1526
39
Beam
25-1084
Seal Kit
A seal kit containing diaphragms, o-rings, and seats, for the HPP-5
positioner is available directly from GE� Simply contact GE and
order part number 30-9601�
Summary of Contents for Becker HPP-5
Page 18: ... ...