Refrigerating Specialties Division
10
Item
Description
Part No.
Qty.
8-12
Bonnet Assy.-
14,16
See Ports List 1, Page 3
13
Spring, Range A and D
80-1001-15
1
15
Diaphragm Follower, Range A
20-1092-00
1
Diaphragm Follower, Range D
20-1092-01
1
17
Diaphragm, Range A
20-1087-04
1
Diaphragm, Range D
20-1087-04
3
76
Motor (HoneywelI M9A4A)
83-1000-44
1
Motor (Penn M80JAA-2)
83-1000-78
1
77
Cam Lock Screw
90-1001-80
78
Motor Cam
20-4087-11
1
79
Motor Mounting Screw
90-1001-70
8
80
Cam Follower Assembly
(includes bearing)
20-0416-00
1
Item
Description
Part No.
Qty.
81
Lock Nut
90-1000-00
1
82
Pressure Adjusting Screw
90-1000-61
1
83
Mounting Post (Honeywell)
20-1174-00
4
Mounting Post (Penn)
20-1174-01
4
84
Guide Post
20-4037-00
1
85
Guide Post Locknut
20-4038-00
1
86
Mounting Plate
20-4093-00
87
Actuating Stem
20-4006-00
1
88
Stuffing Box Nut
20-1080-00
1
89
Packing Ring
20-4092-00
1
90
Stem Insert
20-4035-00
1
MB MOTOR BONNET KIT
Converts to Electric Compensation (M) Variation any
A4A or A2 Series Regulator, Range A. (Not for A4AO)
Includes items 8 and 11 - 17 (same as in Parts List 1),
and items 76-90.
Kit Type
Range
For Port Sizes
Kit Part No.
MBH
A
20 to 100mm (3/4” - 4”)
83-1000-44K
with Honeywell Motor
MBP
A
20 to 100mm (3/4” - 4”)
83-1000-78K
with Penn Motor
Order transformer as a separate item; specify
primary voltage.
Part Numbers with “-K” suffix are kits which include
item numbers shown.
A4AM MOTOR BONNET (Fig. 20)
