Champion HRA20-12, Руководство по эксплуатации и техническому обслуживанию

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CONSTANT SPEED HEAD UNLOADER
FOR AIR COMPRESSOR MODEL R70A
NOTE: This is optional equipment and may not be included on your unit. It is recommended constant speed
unloading be used if motor starts exceed 6 starts/hour.
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 parts found in the regular parts list of the Owner's
Manual for this compressor.
REPAIR PARTS LIST FOR CONSTANT
SPEED HEAD UNLOADER
REF
.NO.
DESCRIPTION QTY..
PART
NO.
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
---
---
LP Intake Manifold (Replaces P09711D)
HP Intake Manifold (Replaces M1431)
Cylinder
Piston
O-Ring
Piston Rod - LP
Piston Rod - HP
Claw - LP
Claw - HP
Spring - LP
Spring - HP
Nut, Hex
Lock Washer
Gasket - HP Only
Actuating Tube
Manifold Tube
Manifold Tube
Intermediate Tube
Compression Fitting 1/4"x1/8" NPTx90 °
Compression Tee 1/4"x1/4"x1/8" NPT
Pilot Valve
Straight Compression Fitting 1/4"x1/8" NPT
Mounting Bracket
Cap Screw
LP HU Manifold Assembly (items 1-9)
HP HU Manifold Assembly (items 1-10)
2
2
4
4
4
2
2
2
2
2
2
8
12
2
1
1
1
1
2
3
1
1
1
1
2
2
P09712D
M1426
P02306B
P02287A
P02547A
M1448
M1452
M1815
M1447
M1449
M1450
M926A
M919A
P0746A
M1509
M1510
M1510
M1512
M2868
M2879
M2853
M2863
M807
M3465
Z1587
Z1588
--- Needle Valve, (Dual Control) (Not Shown) 1 M547
--- Constant Speed Head Unloader Kit 1 HUK504
(includes all of the above)
WHEN INSTALLING HEAD UNLOADER MANIFOLD
ASSEMBLY, BE CERTAIN THAT THE ACTUATING CLAW
(#6) PROTRUDES 3/16" BELOW THE BOTTOM OF THE
MANIFOLD (#1) AS SHOWN. CLAW MUST BE
POSITIONED SO THAT IT WILL ENTER TWO SLOTS IN
THE COMPRESSOR VALVE. FAILURE TO FOLLOW
THIS PROCEDURE WILL RESULT IN AN INOPERATIVE
HEAD UNLOADER.
TYPICAL MANIFOLD ASSEMBLY
3/16” WHEN PISTON
IS UP
C437-A
(Ref. Drawing)
C429-A
(Ref. Drawing)