Product Manual
Table Of Contents
- O-RING (BS010V75)
- Voltage
- Manifold Port
- Pressure Switch
- Safety Valve
- Motor voltage is the only difference between
- the CKMA12 and the CKMA24 compressors.
- Available in 12V (CKMA12) or 24V (CKMA24) models.
- Ultra compact design makes it the highest flowing compressor in its class (voltage vs. size), and able to fit into tight areas where other high flowing compressors will not.
- Fully sealed components for moisture and dust resistance.
- Pressure switch controlled air manifold system specially designed to suit all ARB Air Locker equipped vehicles.
- Hard-anodized cylinder bore and PTFE (Teflon) impregnated carbon fibre piston seal for reduced friction and maximum trouble free life.
- Anodized mounting bracket dissipates motor heat and allows compressor to be repositioned 180 .
- Anti-vibration / sound deadening is integrated into the mount.
- Relocatable splash resistant air filter assembly for cleaner, cooler air supply and versatile waterproof air intake positioning.
- High density and high flow washable sintered bronze air filter element.
- Full wiring loom included for simplified installation and easy plug-in connectivity to Air Locker control solenoids.
- Heavy duty Maxi-Fuse equipped for professional in-line circuit protection.
- Motor is 100% ball bearing equipped, and features a unique linear brush pre-load system for extra long life, low heat and quiet operation throughout the life of the unit.
- Compressor piston is equipped with a German made high shock load rated cylindrical roller bearing.
- Constructed entirely of light weight, high strength, engineering grade materials, including military and aerospace standard components.
- Over-pressure safety valve equipped.
- Motor has internal thermal protection against extreme temperature damage.
- *Motor has integrated EMC noise suppression to protect sensitive auto electronic systems.
- Fully assembled and tested air compressor (12V or 24V).
- Complete wiring loom w/ Air Locker solenoid plug-in contacts.
- OEM quality IP54 rated compressor isolating dash switch.
- Air Locker supply rated pressure switch (490-690 KPa [70-100 PSI]).
- Relocatable splash resistant air filter with washable high-flow sintered bronze filter cartridge.
- Mounting hardware with reinforcing backing plate.
- Comprehensive photo illustrated installation guide.
ARB AIR LOCKER
Air Operated Locking Differentials
Revision Date 27/09/11
CKMA12 & CKMA24
Air Compressor
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
CKM motors are serviceable. Contact ARB.
23(b)
1
MOTOR ASSEMBLY (24V)
320106
2
24
4
HEX BOLT (M6 x 25mm)
200405
3
AIR FILTER BASE (31) & COVER (33) available
*
4
CARRIAGE BOLT (M6 x 25mm)
6151082
only in AIR FILTER ASSY #320501 which also
25
4
FLAT WASHER (M6)
200709
includes the element.
26
1
BACKING PLATE
290603
27
4
NYLON LOCK-NUT (M6)
6151223
4
Wiring loom #180409 suits 12 & 24 volt systems.
28
1
AXLE
320203
See full wiring diagram attached.
29
1
CAP SCREW (M5 x 20mm)
200711
6,7,8
30
1
AIR FILTER FLANGE (1/4” NPT)
320212
5
Complete set of O-ring seals is also available
31
1
AIR FILTER BASE
320501B
3
as O-ring Service Kit #320301.
32
1
AIR FILTER ELEMENT (DISK TYPE)
290503
3
33
1
AIR FILTER COVER
320501A
3
6
PISTON ASSEMBLY (20) comes only as a
34
1
O-RING (BS029N70)
160250
5,8
service kit also containing the BARREL (19),
*
1
WIRING LOOM (CKMA12 & CKMA24)
180409
4
AXLE (28), and CAP SCREW (29).
*
1
RELAY (12V,40A)
CO42
*
1
SWITCH (12V)
180209
7
Thread lock must be applied to threads of CAP
*
1
SWITCH COVER (COMPRESSOR)
180212
SCREW (29) and then torqued to 10 Nm [7.4ft-lb].
*
1
SCOTCH LOCK ELEC. CONNECTOR (564)
CO45
CAP SCREW (29) should never be re-used
*
2
PLUG (1/8” BSPT)
170802
once it has been fully torqued once.
*
2
EYE TERMINAL,10MM (YELLOW)
180702
*
1
EYE TERMINAL,10MM (BLUE)
CO44
8
Pre June 2009 CKMA’s used O-RING 160243 and CAP
*
1
INSTALLATION GUIDE,CKMA
2102MA12
SCREW 200708 (M4 x 20mm torque to 6Nm [4.4ft-lb]).
*
1
FUSE,40A,MAXI TYPE
180703
#
Available separately or included with Air Locker kits.
*
Not illustrated in exploded view.
3.4