Air Commander
ET
RE
T
S
SY
EA
MN-494
(02204)
ECN 3827
Part No. 27325, with air
Part No. 27332, without air
www.airliftcompany.com
Please read these instructions completely before proceeding with installation.
The oil level in the compressor must be checked BEFORE running the engine or
compressor. Failure to do so will result in a faulty compressor and a void warranty.
Important Warranty Information
Front View
1. If the compressor or engine is run without having
oil in the compressor, then the warranty is void.
2. If the belt is misinstalled or the belt does not
have the proper tension, then the warranty is
void.
3. Failure to use included installation components
properly voids the warranty.
4. Failure to check proper oil level and conditions
will void the warranty.
5. This compressor must only be used in an air
compressor application only, not an air
conditioning application. No freon is required.
Side View
Installation Components
Item Description
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
AA
BB
CC
DD
Compressor
Serpentine Belt (with air)
Serpentine Belt (without air)
Alternator Pulley
Clutch/Pulley Assembly
Idler/Pulley Assembly
Overflow Reservoir
Coelescing Filter
Inlet Filter
Leader Hose
Computer Bracket
Compressor Plate
Coolant Reservoir Bracket
Upper Bracket
Lower Left Bracket
Lower Right Bracket
Air Filter Bracket
Brass Cross Bracket
Compressor Fitting
Compressor Sleeve Insert
O-ring
1
/2" NPT Check Valve
1
/4" NPT Relief Valve
110-145 p.s.i. Pressure Switch
1
/2" NPTM x 1/2" Tube Straight
1
/2" NPTM x 1/4" NPTF Bushing
1
/2" Brass Cross
Plug
1
/2" NPTM x 1/8" NPTF Bushing
1
/2" NPTF Coupling
Part Number
24325
10652
10655
10230
26615
26630
21135
21107
10670
22024
10730
10755
10179
10761
10762
10763
10479
26237
21130
21125
21578
21285
24290
24551
21369
21247
21221
21190
21251
21220
Qty. Item Description
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
5
1
1
1
1
3
EE
FF
GG
HH
II
JJ
KK
LL
MM
NN
OO
PP
QQ
RR
SS
TT
UU
VV
WW
XX
YY
ZZ
AB
AC
AD
AE
AF
AG
AH
AI
1
/2" Street Tee
3
/8"-16 x 3/4" Bolt
3
/8" Flat Washer
3
/8"-16 x 1 Carriage Bolt
3
/8"-16 x 7/8" Bolt
3
/8" Lock Washer
3
/8"-16 Hex Nut
8mm-1.25 x 25mm Bolt
8mm Flat Washer
8mm Lock Washer
Frame Clamp
1
/4"-20 x .75" Bolt
Self Tapper
5
/16" Flat Washer
10-32 x 3/8" Machine Screw
1
/4"-20 Kep Nut
1
/4" Hose Clamp Worm
20 amp AGC Fuse
Red 16 Gauge Wire
ATC/ATO Fuse Tap In
Mini Fuse Adapter
Butt Connector
1
/4" Female Terminal
AGC Fuse Tap In
3
/16" Female Terminal
Thread Sealant
1
/2" Nylon Hose
Hose Cutter
Oil Dipstick
Pipe Nipple
Part Number
21391
17101
18444
17134
17187
18427
18430
17177
18501
18503
10181
17175
17102
18405
18496
18452
10550
24739
24643
24542
24561
24645
24594
24543
24524
23586
20966
10530
10159
21729
Qty.
1
2
9
4
3
7
4
1
1
1
1
8
2
6
2
8
1
1
8'
1
1
2
3
1
1
2
15'
1
1
1
Technical Support
1-800-248-0892
Ext. 2
1
1-800-248-0892
2
Ext. 2
II
Technical Support
J
GG
JJ
DD
L
Y
S
S
A
DD
I
W
Z
EE
Figure 1
Y
H
AI
V
Y
AA
R
Y
X
BB
CC
Y
To Air Tank
To Keyed
Power Source
NOTE: This compressor will mount on the right
(passenger) side of the engine. It may be necessary to
relocate or remove the air conditioning lines. If the oil is
low in the compressor, use Polyol Ester (P.O.E.) P.A.G. oil
and fill to specified amount.
I. Assembling the Compressor
1. Attach the clutch to the compressor using the four bolts that
come in the box with the clutch (Figure 2). Tighten the bolts
securely. NOTE: Make sure that the wire is at the bottom right
hand side of the compressor.
2. Place the pulley (E) over the clutch and align the keyway. Attach
the pulley (E) using the provided hardware. Tighten securely to
the shaft (Figure 4).
Figure 2
3. Attach the small clamp that came with the clutch using bolt (FF)
and flat washer (GG). Route the wire through the clamp (Figure
3).
4. Attach the plate (L) to the left side of the compressor (engine
side) using bolts (II), lock washers (JJ), and flat washers (GG).
Be sure to insert the carriage bolt (HH) before bolting the plate
down (Figure 5). NOTE: The long tab at the bottom of the
bracket faces the rear of the compressor (Figure 5).
5. Remove the small bolt on the open side of the compressor above
the line clamp previously installed and check the oil level in the
compressor with the supplied dipstick (AH). The oil level should
be from 1” to 11/4" on the dipstick. The compressor should have
a total of 8 fl. oz. (237 ml). Use Polyol Ester (P.O.E.) P.A.G. oil
only. Attach the plug and tighten.
Figure 3
Figure 4
Figure 5
Technical Support
1-800-248-0892
Ext. 2
3
II. Preparing the Vehicle
1. Remove the belt, belt tensioner, positive battery cable, back
and side alternator bolts, computer and bracket, and radiator
overflow.
2. It will be necessary to slightly bend the inner fender to obtain
adequate clearance for the compressor. Use a pry bar or a 2 x
4 and pry using the frame (Figure 6).
3. Unbolt and move the evacuation line from the front of the
manifold to the rear of the manifold (Figure 7).
Figure 6
4. Remove and replace the idler pulley with the pulley (F) supplied.
5. Attach bracket (P) and idler pulley back onto the vehicle using
the existing bolts removed (Figure 8). Tighten securely.
6. Install the upper bracket (N) using the existing bolt previously
removed (Figure 9). Leave loose at this time.
7. Install the back bracket (O) using the 8mm bolt (LL), lock washer
(NN), and flat washer (MM) provided. NOTE: The flange faces
to the rear of the vehicle. Leave loose at this time.
Figure 7
Figure 8
Figure 9
Technical Support
1-800-248-0892
4
Ext. 2
III. Installing the Compressor
1. Remove and replace the alternator pulley with the new pulley
(D) supplied.
2. Set the assembly unit in place. If the compressor still hits,
remove the assembly and adjust the fender.
3. Insert the carriage bolt protruding from the compressor mounting
plate through the top bracket. Attach using the flat washer (GG),
lock washer (JJ), and nut (KK). Leave loose at this time.
4. Insert three carriage bolts (HH) through the bottom mounting
holes and attach with flat washers (GG), lock washers (JJ), and
nut (KK). Leave loose at this time (Figure 10).
Figure 10
5. Tighten all the support bracket mounting bolts at this time (i.e.,
alternator, idler pulley, etc.).
6. Install the new serpentine belt (with air (B), NAPA part #25060945
or without air (C), NAPA part #25060849). Route the belt per
Figure 11. NOTE: Figure 11 is without air conditioning.
7. Be sure that the compressor and belt is fully aligned before
securing the mounting hardware. If not aligned, unattach the
belt and adjust the compressor as needed. Tighten all mounting
and bracket hardware only when all is fully aligned.
Figure 11
8. Attach the negative cable, alternator wire, and clutch wire to the
compressor using clamp (OO), bolt (FF), and flat washer (GG)
supplied (Figure 12).
IV. Reinstalling the Computer
1. Attach the computer bracket (K) to the fender using existing
nuts previously removed (Figure 13).
2. Attach the computer to the bracket using bolt (PP), flat washer
(RR), and nut (TT) supplied. Attach the wiring harness to the
computer, if disconnected.
Figure 12
Figure 13
Technical Support
1-800-248-0892
Ext. 2
5
V. Installing the Radiator Overflow
Reservoir
1. Remove the two bolts on the ABS/brake bracket on the driver
side fender (Figure 14) and attach the bracket (M) to the ABS
brake bracket using existing bolts removed.
2. Loosely attach the reservoir (G) to the bracket using bolts (PP),
flat washer (RR), and nuts (TT).
Figure 14
3. Mark the fender at the bottom using the bottom hole on the
reservoir, center punch and drill a 1/4" hole, being careful no to
drill the tire. Reattach the reservoir in all three mounting
locations.
4. Pull the overflow hose out of the clamps under the radiator.
Reroute to the bottom of the reservoir. Cut and attach the hose
using clamp (UU) provided. Fill the radiator half way with radiator
fluid (Figure 14).
VI. Checking the Belt
Previously
attached
to vehicle
1. Attach the positive battery cable.
2. Check all hardware to be sure that it is secure.
3. Start the engine and observe the belt and pulley for alignment.
NOTE: DO NOT ENGAGE CLUTCH YET. Adjust if necessary.
VII. Installing the Filter
1. Using the provided thread sealant, assemble the bushing (Z)
and relief valve (W) to the brass street tee (EE). Install a 1/2"
NPTM x 1/2" tube straight fitting (Y) to the tee (Figure 1).
2. With the arrow pointing in the direction of the flow, assemble
the coelescing filter (H) to the brass tee assembly using the
supplied sealant (Figure 1). Tighten securely.
Figure 15
3. Securely attach a 1/2" NPTM x 1/2" tube straight nipple (AI) to the
port on the coelescing filter (Figure 1).
4. Loosely attach the filter bracket (Q) to the filter using the provided
screws (SS).
5. Find a remote location on the frame or in the rear with enough
clearance to install the filter assembly and use filter bracket as
a template to mark mounting locations. Remove filter assembly
and drill the mounting hole locations with a 1/4" bit.
6. Remove the filter from the bracket and install the bracket using
the self tapping bolts (QQ). Tighten securely (Figure 15).
7. Reattach the filter to the bracket and tighten screws securely
(Figure 15).
Technical Support
1-800-248-0892
6
Ext. 2
VIII. Installing the Hose Assembly
1. Install the brass cross bracket (AA). Using the bracket (R) as a
template, mark and drill the two 1/4" mounting holes and attach
using two bolts (PP) and two nuts (TT).
2. Attach the bushing (CC) and pressure switch (X) to one leg of
the brass cross (AA) and plug (BB) to the other leg directly
across from the pressure switch (Figures 1 and 16).
To Check Valve
To Air Tank
3. Attach the brass cross to the bracket using a 1/2" NPTM x 1/2"
tube straight fitting (Y) on each side (Figures 1 and 16).
Figure 16
4. Install a 1/2" NPTM x 1/2" tube straight fitting (Y) to one end of the
check valve (V) (Figure 1). Tighten securely. The check valve
will be installed to the filter assembly. NOTE: The arrow points
in the direction of the flow and the fitting goes onto the discharge
end of the check valve.
Bushing
Compressor
Fitting
Leader Hose
5. Use the provided hose cutter (AG) to cut a length of ½" hose
long enough to run from the cross assembly to the air fitting on
the filter assembly. Do not attach at this time.
6. Being sure that the arrow on the check valve points in the
direction of the flow, attach one end of the hose into the pushto-connect fitting on the check valve. Route the other end to
the fitting on the cross assembly (Figure 1).
Compressor
Figure 17
1
7. The open leg on the cross routes into a /2" hose going to the
existing air tank (Figure 1).
8. Using the thread sealant provided, assemble two of the brass couplings (DD) to both ends of the steel leader hose
(J). Tighten securely (Figures 1 and 17).
9. Remove the caps to the discharge and supply ports on the top of the compressor.
10. Slide the O-rings (U) around the two sleeve inserts (T). Set the inserts into the port holes on top of the compressor.
11. Set the compressor fittings (S) over the inserts and loosely attach using the existing bolts removed.
12. Attach a coupling (DD) and filter (I) to the supply side (the side closest to the engine) using the provided sealant.
Position the filter and tighten the compressor fitting bolt securely.
13. Firmly attach the steel leader hose to the remaining compressor fitting using the provided sealant (Figures 1 and
11).
14. Attach a 1/2" NPTM x 1/2" tube (Y) fitting to the opposite end of the leader hose.
15. Tighten the bolts on both compressor fittings securely.
16. Attach a length of hose (AF) from one end of the leader hose to the fitting on the relief valve assembly on the filter
(Figure 1).
IX. Checking the Oil
Use a dipstick (AH) to check the oil depth. The depth must be between 1" and 11/4" (Figure 13). If this is not done, the
warranty will be void.
Technical Support
1-800-248-0892
Ext. 2
7
X. Wiring the Electrical System
1. The hot lead to the compressor is the black wire on the clutch. Cut off the fitting on the end of the black wire and
using butt connector (ZZ), splice a length of the red wire (WW) to the black wire. Run red wire to spade terminal on
the pressure switch. Attach a blue spade connector (AB) to the red wire and attach to one of the terminals on the
pressure switch.
2. Splice the 20 amp fuse in the fuse box using the adapters provided into a hot keyed power source and run it to the
other terminal on the pressure switch.
3.
After all hardware has been secured and oil level is within range, the system is now ready to operate. See Figure
18 for a finished installation.
4. We recommend purchasing a spare belt to carry in the vehicle in case of a belt failure.
5. Check all fittings and air line connections for leaks with a solution of 1/5 dish soap to 4/5 water in a spray bottle.
Figure 18
Important Warranty Information
1. If the compressor or engine is run without having oil in the compressor, then the warranty
is void.
2. If the belt is misinstalled or the belt does not have the proper tension, then the warranty is
void.
3. Failure to use included installation components properly voids the warranty.
4. Failure to check proper oil level and conditions will void the warranty.
5. This compressor must only be used in an air compressor application only, not an air
conditioning application. No freon is required.
6. It is necessary to periodically check the filter for trapped oil. This needs to be performed
three or four times a year. Failure to do so will result in reduced component life.
Technical Support
1-800-248-0892
8
Ext. 2
Technical Support
1-800-248-0892
Ext. 2
9
Thank you for purchasing Air Lift Products
ET
E
TR
YS
Mailing Address:
AIR LIFT COMPANY
P.O. Box 80167
Lansing, MI 48908-0167
S
EA
Street Address:
AIR LIFT COMPANY
2727 Snow Rd.
Lansing, MI 48917
Local Phone: (517) 322-2144
Fax: (517) 322-0240
www.airliftcompany.com
For Technical Assistance call 1-800-248-0892
“The Choice of the Professional Installer”
Technical Support
1-800-248-0892
10
Ext. 2
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