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BIFFI ALGAS-QA EAC User Manual
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37
Installation, Operation and Maintenance Manual
MAN616_EAC Rev
. 5
July 2020
Section 5: Maintenance
Mainte
nance
Item
Description
1
Sto
p setting screw
2
Spring con
tainer
3
Spring
4
Nut
5
Shoulde
r washer
6
Rod bu
shing
7
Screw
8
Housing
9
Guide bar
10
Cov
er gask
et
11
Yo
k
e
12
Plug
13
Bushing
14
Guide block
15
Screw
16
Nut
17
He
ad ange
18
Tie rod
19
C
ylinder tube
20
Piston rod
21
Piston
22
End ange
23
Lifting eyelet
24
Spring washe
r
25
Nut
26
Sto
p setting screw
27
Guide rod
28
Spring thrust ange
29
Rod bu
shing
30
Container r
od
31
Adap
tor bush
32
W
asher
33
Cover
34
Screw
35
Guide block pin
36
V
ent valve
37
Sliding block
38
O - ring
39
Y
oke bushing
40
Retainer ring
41
Nut
42
W
asher
43
Sealing wa
sher
44
Gasket
45
piston rod bu
shing
46
O - ring
47
O - ring
48
Guide sliding ring for p
iston
49
O - ring
50
O - ring
51
Damper
52
Spacer
53
O - ring
54
Piston ring nut
55
Piston
56
O - ring
57
Fi
lter
58
Body
59
O - ring
60
Spring
61
Sealing wa
sher
62
Screw
63
Nut
64
Screw (a
djustable)
65
Screw
66
Plug
67
Spacer
68
Screw
69
W
asher
70
Cover
71
Screw
72
Spacer
73
O - ring
74
O - ring
75
O - ring
76
W
asher
77
Ring nut
78
Flow control screw
Item
De
scription
T
able 10.
Parts LIst
40
42
Table of Contents
Default Chapter
3
Table of Contents
3
Section 1: General Warnings
5
Applicable Regulation
5
Terms and Conditions
6
Description of the Actuator
7
Section 2: Installation
9
Checks to be Carried out on Receiving the Actuator
9
Storage
9
Assembling the Actuator Onto the Valve
10
Types of Assembly
10
Valve Stem with Vertical Axis
15
Valve Stem with Horizontal Axis
19
Section 3: Operation and Use
21
Operation Description
21
Residual Risks
22
Operations
22
Calibration of the Quick Operation Time
23
By-Pass Adjustment
23
Setting of the Angular Stroke
25
One Travel-Stop-Screw Screwed on the End Flange Center of Pneumatic Cylinder
25
Angular Stroke Setting in Case of Two Travel Stop Screws in the End Flange of Pneumatic Cylinder
28
Stop Screw Screwed on the End Flange of Spring Container
29
Calibration of Micro-Switches (Applicable to Biffi Limit Switch Box Model Only)
31
Preparation for Start-Up
33
Pneumatic Connections
33
Electrical Connections
33
Start-Up
34
Section 4: Operational Tests and Inspections
35
Operational Tests and Inspections
35
Section 5: Maintenance
36
Routine Maintenance
36
Extraordinary Maintenance
37
Replacement of Cylinder Seals
38
Seals Replacement
38
Cylinder Reassembling
39
Lubrication of Mechanism
42
Dismantling and Demolition
43
Section 6: Troubleshooting
44
Failure or Breakdown Research
44
Section 7: Layouts and Sectional Drawings
45
Parts List for Maintenance and Replacing Procedure
45
Section 8: Spare Parts
51
Spare Parts
51
Section 9: Date Report for Maintenance Operations
52
Date Report for Maintenance Operations
52
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BIFFI ALGAS-QA EAC Specifications
General
Brand
BIFFI
Model
ALGAS-QA EAC
Category
Controller
Language
English
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