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Speedaire Operating Instructions & Parts Manual
For Replacement Parts, call 1-800-323-0620
24 hours a day - 365 days a year
Please provide following information:
-Model number
-Serial number (if any)
-Part description and number as shown in parts list
Figure 9 — Replacement Parts Illustration for Constant
Speed Head Unloader
Replacement Parts List for Constant Speed Head Unloader
Ref.
No.
Description
1•
LP Intake manifold
1A▲
HP Intake manifold
2▲•
Cylinder
3▲•
Piston
4▲•
O-ring
5•
Piston rod – LP
5A▲
Piston rod – HP
6•
Claw – LP
6A▲
Claw – HP
7•
Spring – LP
7A▲
Spring – HP
8▲•
1/4 - 28 Hex nut
9▲•
1/4 " Lockwasher
10▲
Gasket (HP only)
11
Actuating tube
C437-B
(Ref. Drawing)
Part
Ref.
No.
Qty
No.
P09712D
2
12
M1426
2
13
P02306B
4
14
P02287A
4
15
P02547A
4
16
M1448
2
17
M1452
2
18
M1815
2
19
M1447
2
20
M1449
2
∆
M1450
2
M926A
8
∆
M919A
12
•
P0746A
2
▲
CC1059015
1
13
When re-installing head unloader
the actuating claw (Ref. No. 6) protrudes 3/16"
below the bottom of the manifold (Ref. No. 1) as
shown. Claw must be position so that it will enter
three slots in the compressor valve. Failure to
follow this procedure will result in an inoperative
head unloader.
Description
Manifold tube (left bank)
Manifold tube (right bank)
Intermediate tube
1/4" x 1/8" x 90° Compression fitting
1/4" x 1/4" x 1/8" Compression tee
Pilot valve
1/4" x 1/8" x St. Compression fitting
Mounting bracket
3/8-16 x 3/4" Capscrew
1/4" OD Sensing tube
(specify length needed)
Needle valve (dual control)
LP HU Manifold assembly
HP HU Manifold assembly
3Z411A
E
N
G
L
I
S
H
C429-A
(Ref. Drawing)
Part
No.
Qty
CC1061685
1
CC1061685
1
CC1061684
1
M2868
2
M2879
3
M2853
1
M2862
1
M807
1
M3465
1
M1620
1
M547
1
Z1587
2
Z1588
2
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