Champion R30D Operation Maintenance Manual & Parts List page 27

NOTE: This is optional equipment and may not be included on your unit.
The purpose of constant speed unloading is to provide a means of stopping or starting the compression of air by the
compressor without stopping or starting the electric motor or gasoline engine after each cycle.
The parts called out below replace or are substituted for those found in the regular parts list.
TYPICAL MANIFOLD ASSEMBLY
CONSTANT SPEED HEAD UNLOADER
For Air Compressor Model R30D
Low Pressure
REF. NO.
High Pressure
REF. NO.
C414-A
(Ref. Drawing)
Low & High Pressure
REF.NO.
C413-A
(Ref. Drawing)
Repair Parts List for Constant Speed
DESCRIPTION
LP Intake Manifold Group (includes 1,2,3,4)
1 LP Intake Manifold
2 Cylinder
3 Unloader Piston
4 O-Ring
5 LP Valve Assembly
(includes 6,7,8,9)
6 Unloader Finger
7 Unloader Spring
8 Locknut
9 Guide Stem
DESCRIPTION
HP Intake Manifold Goup
(Includes items 1,2,3,4,10)
1 HP Intake Manifold
2
Cylinder
3 Unloader Piston
4
O-Ring
5 HP Valve Assembly
(includes 6,7,8,9 & 11)
6 Unloader Finger
7 Unloader Spring
8
Locknut
9 Guide System
10
Cylinder Gasket
11 Valve Gasket (not included)
DESCRIPTION
12 Intermediate Tube
13 Actuating Tube
14 Compression Fitting
15 Compression Fitting
16 Compression Fitting
17 Pilot Valve
18 Mounting bracket
19 Screw, Hex Head Cap
20 Compression Fitting
Sensing Tubing, 1/4" O.D. (Specify length)
21
Manifold Tube
22
Needle Valve (Dual Control) Not Shown
--
Constant Speed Head Unloader Kit
--
(Includes all of the above)
27
Head Unloader
PART NO.
Z6312
P09670C
P02306B
P09923A
P02547A
Z4877
P09085A
P09084A
P09086A
P09083A
PART NO.
Z9143
P12304B
P02306B
P09923A
P02547A
Z11938
P14119A
P01882A
P09086A
P09296A
P00746A
P09171A
PART NO.
ZP08461B
ZP08463B
M2868
M2879
M2863
M2853
M807
M3465
M2862
M2474
Z9172
M547
Z9145
QTY.
2
2
2
2
2
2
2
2
2
2
QTY.
2
2
2
2
2
2
2
2
2
2
2
QTY.
1
1
1
3
1
1
1
1
1
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2
1
1