ARB AIR LOCKER
Air Operated Locking Differentials
CKMA12 &
CKMA24
On-Board Air Compressor Kit,
High Output
Specs:
ITEM #
QTY
DESCRIPTION
PART #
NOTES
01
1
O-RING (BS010V75)
160242
5
Voltage
12 Volts (CKMA12), 24 Volts (CKMA24)
02
1
MANIFOLD CAP (1/4” NPT)
320214
Current Draw
No-Load 14.2A (CKMA12 only)
03
1
PRESSURE SWITCH (1/4” NPT)
CO35
Load 25.2A (CKMA12 only)
04
2
O-RING (BS031N70)
160241
5
Air Flow
87.2L/min @ 0kPa [3.08CFM @ 0psi]
05
1
MANIFOLD TUBE
320215
65.9L/min @ 200kPa [2.34CFM @ 29psi]
06
2
HEX BOLT (M6 x 60mm)
200703
Total Weight
4.5kg [9.9lbs]
07
1
COMPRESSOR HEAD ASSEMBLY
320102
Size
145mm x 190mm x 98mm (H,L,W)
08
1
SAFETY VALVE POPPET
320205
1
[5.7” x 7.5” x 3.9”]
09
1
SAFETY VALVE SPRING
150115
1
Manifold Port
1
/
4
” NPT [Pressure Switch] x 1
10
1
SAFETY VALVE FITTING
320204
1
1
/
8
” BSPT [Solenoid nipple] x 2
11
1
HEX BOLT (M6 x 125mm)
200704
Pressure Switch
Open 690kPa [100psi]
12
4
HEX BOLT (M6 x 12mm)
200702
Closed 490kPa [70psi]
13
1
MANIFOLD SUPPORT BRACKET
320207
Safety Valve
OPEN @ > ~1250Kpa [180 PSI]
14
#
AIR LOCKER CONTROL SOLENOID (12V)
180103
15
#
NIPPLE (1/8” to 1/8” BSPT)
170501
Notes:
16
#
PUSH-
IN FITTING (5mm to 1/8” BSPP)
170201
17
3
O-RING (BS032S70)
160247
5
18
1
VALVE PLATE ASSEMBLY
320105
19
1
BARREL
320201
1
Comes pre-assembled with HEAD ASSY (07).
20
1
PISTON ASSEMBLY (SERVICE KIT)
320302
6
21
1
STICKER, CKM COMPRESSOR
210122
2
Motor voltage is the only difference between
22
1
MOUNT ASSEMBLY
320101
the CKMA12 and the CKMA24 compressors.
23(a) 1
MOTOR ASSEMBLY (12V)
320104
2
Motor is serviceable with replacement brushes
23(b) 1
MOTOR ASSEMBLY (24V)
320106
2
available as #320111.
24
4
HEX BOLT (M6 x 25mm)
200405
*
4
CARRIAGE BOLT (M6 x 25mm)
6151082
3
AIR FILTER BASE (31) & COVER (33) available
25
4
FLAT WASHER (M6)
200709
only in AIR FILTER ASSY #320501 which also
26
1
BACKING PLATE
290603
includes the element.
27
4
NYLON LOCK-NUT (M6)
6151223
28
1
AXLE
320203
4
Wiring loom #180409 suits 12 & 24 volt systems.
*
1
RETAINING RING, DIN7993 RW-14
6151767
29
1
CAP SCREW (M5 x 20mm)
200711
6,7,8
See full wiring diagram attached.
30
1
AIR FILTER FLANGE (1/4” NPT)
320212
31
1
AIR FILTER BASE
320501B
3
5
Complete set of O-ring seals is also available
32
1
AIR FILTER ELEMENT (DISK TYPE)
290503
3
as O-ring Service Kit #320301.
33
1
AIR FILTER COVER
320501A
3
34
1
O-RING (BS029N70)
160250
5,8
6
PISTON ASSEMBLY (20) comes only as a
*
1
WIRING LOOM (CKMA12 & CKMA24)
180409
4
service kit also containing the BARREL (19),
*
1
RELAY (12V,40A)
CO42
AXLE (28), and CAP SCREW (29).
*
1
SWITCH (12V)
180209
*
1
SWITCH COVER (COMPRESSOR)
180212
7
Thread lock must be applied to threads of CAP
*
2
PLUG (1/8” BSPT)
170802
SCREW (29) and then torqued to 10 Nm [7.4ft-lb].
*
2
EYE TERMINAL,10MM (YELLOW)
180702
CAP SCREW (29) should never be re-used
*
1
EYE TERMINAL,10MM (BLUE)
CO44
once it has been fully torqued once.
*
1
FUSE,40A,MAXI TYPE
180703
*
1
MINI BLADE FUSE HOLDER, 5A FUSE
180418
9
8
Pre June 2009 CKMA’s used O-RING 160243 and CAP
*
1
EYE TERMINAL,8MM (RED)
180707
9
SCREW 200708 (M4 x 20mm torque to 6Nm [4.4ft-lb]).
*
1
CABLE JOINER,INSULATED (RED)
180708
9
*
1
INSTALLATION GUIDE,CKMA
2102MA12
9
Only included in the CKMA24
#
Available separately or included with Air Locker kits.
*
Not illustrated in exploded view.
