Aseptico AA-75CF Troubleshooting guide

SERVICE MANUAL
& PARTS LIST
AA-75CF
NSN: 6520-01-456-7170 (Part 2 of 2)
P.O. Box 1548 Woodinville, WA 98072-1548
1-800-426-5913 * 425-487-3157 * Fax: [phone]
email: [email protected] * Internet: www.aseptico.com
12/98
P/N 4202252

Page 2
TABLE OF CONTENTS
Maintenance and Servicing Instructions . . .3
Cleaning and Lubrication . . . . . . . . . . . . . . .3
Performance Verification . . . . . . . . . . . . . . .3
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Troubleshooting . . . . . . . . . . . . . . . . . . . . . .3-4
Disassembly, Repair, Replacement,
Reassembly, and Check Out . . . . . . . . . . . . .4-12
Compressor Chassis Removal . . . . . . . . . . .4
Compressor Removal . . . . . . . . . . . . . . . . . .6
Compressor Motor
Service Kit Installation . . . . . . . . . . . . . . . . .8
Aftercooler Fan Replacement . . . . . . . . . . .8
Aftercooler Assembly Replacement . . . . . . .9
Pressure Switch Replacement . . . . . . . . . . .10
Check Valve Replacement . . . . . . . . . . . . . .10
Removing the Air Storage Tank . . . . . . . . . .10
Replacing Pneumatic Tubing . . . . . . . . . . . .11
Removing Electronics Module . . . . . . . . . . .12
Removing the Intake Fan . . . . . . . . . . . . . . .12
Transformer Replacement . . . . . . . . . . . . . .12
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-26
Case Base . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Case Top, Inside . . . . . . . . . . . . . . . . . . . . . .14
Case Top, Outside . . . . . . . . . . . . . . . . . . . . .14
Compressor Chassis . . . . . . . . . . . . . . . . . . .16
Air Storage Tank . . . . . . . . . . . . . . . . . . . . . .16
Transformer . . . . . . . . . . . . . . . . . . . . . . . . . .18
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . .18
Intake Fan . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Aftercooler . . . . . . . . . . . . . . . . . . . . . . . . . .20
Motor Exhaust . . . . . . . . . . . . . . . . . . . . . . .22
Electronics Module . . . . . . . . . . . . . . . . . . . .22
Pressure Switch . . . . . . . . . . . . . . . . . . . . . . .22
Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Expendables . . . . . . . . . . . . . . . . . . . . . . . . .26
Table of Illustrations
Figure A: AA-75CF
Component Identification . . . . . . . . . . . . . .5
Figure B: Compressor Chassis Removal . . .5
Figure Group C: Compressor Removal . . . .6
Figure D: Service Kit Installation . . . . . . . .7
Figure E: Aftercooler Removal . . . . . . . . . .9
Figure F: Pressure Switch Leads . . . . . . . . .11
Figure G: Tank Removal . . . . . . . . . . . . . . .11
Figure H: Intake Fan Removal . . . . . . . . . . .12
Figure I: Electronics Module . . . . . . . . . . . .12
Figure J: AA-75CF
System Wiring Schematic . . . . . . . . . . . . . . .13
Figure K: AA-75CF
System Pneumatic Schematic . . . . . . . . . . . .13
Figure 1: Case Base . . . . . . . . . . . . . . . . . . .15
Figure 2: Case Top, Inside . . . . . . . . . . . . . .15
Figure 3: Case Top, Outside . . . . . . . . . . . . .15
Figure 4: Compressor Chassis . . . . . . . . . . .17
Figure 5: Air Storage Tank . . . . . . . . . . . . . .17
Figure 6: Transformer . . . . . . . . . . . . . . . . . .19
Figure 7: Compressor . . . . . . . . . . . . . . . . . .19
Figure 8: Intake Fan . . . . . . . . . . . . . . . . . . .21
Figure 9: Aftercooler . . . . . . . . . . . . . . . . . .21
Figure 10: Motor Exhaust Chassis . . . . . . . .23
Figure 11: Electronics Module . . . . . . . . . . .23
Figure 12: Pressure Switch . . . . . . . . . . . . . .23
Figure 13A & B: Top Cover . . . . . . . . . . . . .25

Page 3
Maintenance and Servicing Instructions
Cleaning and Lubrication
Exposed surfaces of the AA-75CF should be disinfected with a commercial dental disinfectant.
Abrasive cleaning agents have the potential to damage surface finishes and should be avoided. To
minimize the risk of corrosion do not use chlorinated solvents to clean either the inside or the
outside of the compressor valves, the air storage tank or the aftercooler assembly.
Lubrication of AA-75CF compressor components is unnecessary. The compressor uses sealed
bearings and Teflon cylinder technology to eliminate the need for lubrication. The cooling fans
similarly use sealed bearings.
Performance verification
To verify proper compressor function, make sure the tank gauge pressure is at zero, the tank drain
valve is closed and the pressure switch is in the OFF position. Plug the compressor into the power
source. Switch the pressure switch to the AUTO position. The compressor should charge the air
storage tank and the intake and aftercooler fans should run. Confirm that compressor shut off
occurs at approximately 105 psi. Open the tank drain valve. When gauge pressure in the tank drops
below 70 psi, the compressor should restart. Allow the tank to drain until all significant water is
removed. Once the air exiting the tank is dry to the touch, close the tank drain valve. When
compressor cuts off, verify that the fans continue to run for approximately two minutes and that the
tank pressure remains constant near 100 psi. A 5 psi drop can be expected after cut off. Listen for
leaks at pneumatic system connections. If leaks are indicated by pressure loss but are not audible,
check the seals with a soap test. A water-liquid detergent solution should be applied to the circum-
ference of the joint. A leak at a seal will cause the solution to bubble. Tighten the joint, if necessary
reapply Teflon tape, until bubbles no longer appear.
Inspection
The felt media of the air intake filters requires periodic inspection and replacement. Initial inspec-
tion is recommended after 500 hours. Afterwards a service duration should be determined based on
the operating conditions. Excessive felt contamination can reduce compressor output and may affect
service life.
Initial compressor inspection is recommended at 2,000 hours. The wear of the rider ring is an indica-
tion of the general condition of the compressor rings. To inspect the rider rings, remove the
compressor from the case as per Compressor Removal instructions, then disassemble the
compressor cylinder heads. If the rider ring measures 0.055 in. or less, an overhaul should be
performed by installing a Service Kit. See the Compressor Motor Service Kit Installation subsection
of the Disassembly, Repair, Replacement, Reassembly and Check Out Section of this manual for
detailed installation procedures.
Troubleshooting
Symptom Problem Action
System non-operational Main breaker tripped Reset main breaker
Pressure switch contacts corroded Replace switch
Compressor motor not running Main breaker tripped Reset main breaker
Thermal overload tripped Allow several minutes to cool and restart
No duplex outlet power Circuit breaker tripped Reset duplex breaker
Tank pressure exceeds 110 psi. Pressure switch settings altered Readjust according to Pressure Switch
Replacement section note
Compressor attempts to restart under load Leaking or obstructed check valve Disassembly and clean or replace.
Misaligned unloader valve Tighten unloader valve screw and realign.
Extended compressor cycle time Air demand has been altered Readjust instruments
Clogged intake filters. Clean or replace.
Air line leaks. Tighten couplings, retape.
Water collected in air storage tank. Blow off tank

Page 4
Motor won’t start with gauge pressure at 0 psi
The thermal protection of the compressor may have been activated. If system fans are still
functioning, allow the unit to cool briefly and restart. If system fans are not running, a high amperage
condition existed resulting in the system circuit breaker being tripped. This condition will result from
a leaking check valve or malfunctioning unloader valve.
Motor experiences labored start with gauge pressure below 70 psi
This condition results from the motor attempting to restart with pressure in the cylinder. This is an
indication of a leaking check valve or malfunctioning unloader valve. Inspect the check valve and the
unloader switch. Service components as required.
Motor starts at an intermediate pressure or Pressure relief valve is activated
Disconnect the unit from the power source. Inspect the pressure switch for excessive wear and
damaged or dirty components. Replace parts as required.
Compressor cycles more frequently than is common
Shut off compressor. Watch the tank pressure gauge. If the tank pressure drops rapidly, check tubing
and fittings for leaks. If tubing and fittings are satisfactorily connected, the check valve should be
inspected for dirt and damage. If after shut off tank pressure is maintained, the tank should be blown
off. Water vapor can condense in the tank and reduce its capacity.
Compressor takes longer to build tank pressure than is common
Check system tubing and fittings for leaks. Inspect compressor air intake filters. Replace filter
cartridge if required.
No power to duplex outlet
Verify system is powered. Reset duplex outlet circuit breaker.
Disassembly, Repair, Replacement, Reassembly and Check Out
The AA-75CF has been designed for minimal required maintenance. Compressor service should be
performed every two thousand hours and component service should be required only when compo-
nent damage occurs or service life is exceeded. Modular construction makes component inspection
and replacement simple. Maintenance can be performed with only the following tools: a 7/16 socket
drive, a set of English Hex wrenches, a 12 in. and an 8 in. crescent wrench, flathead and
#2 Phillips screwdrivers, and a 1/4 inch open face wrench.
For Reassembly, Teflon tape or an equivalent thread sealant should be applied to all pneumatics
fittings and a serviceable thread locking compound should be applied to all fasteners.
To check the success of any repair, perform the procedure detailed in the Performance Verification
section.
The first step in any major component replacement is the removal of the compressor chassis from
the case bottom.
Compressor Chassis Removal
Tools: 7/16 in. socket wrench and serviceable thread locking compound.
1. Remove case top.
2. Carefully place unit top cover down.
3. Remove the case bumper screws, sealing washers and case bumpers. Reference Figure B
4. Lift off case bottom. Use a rocking motion to clear ID plate rivets.
5. Replace by reversing steps. Secure case bumper screws using thread locking compound.

Page 5
Intake Fan Assembly
Pressure Switch
Air Storage Tank Assembly
Transformer
Electronics Module
Compressor
Aftercooler Housing Assembly
Exhaust Baffle
Figure A
AA-75CF Component Identification
Figure B
Compressor Chassis Removal
Case Bumper Screws

Page 6
Compressor Removal Reference Figure Group C
Tools: 1/4 and 5/16 hex drive or Allen wrench, flat head screwdriver, 12 in. or smaller crescent wrench, pliers,
and 1/4 open face wrench.
1. Remove compressor chassis from case bottom as per the Compressor Chassis Removal section.
2. Loosen the duct clamp at on the motor side of the intake hose and remove the hose from the
motor intake.
3. Loosen the nut on the motor tee fitting and remove the 1/2 tubing.
4. Disconnect the ground wire from under the capacitor cover.
5. Loosen the exhaust duct and twist it free from of the compressor.
6. Disconnect the five insulated terminals from the back of the compressor.
7. Disconnect the two inline connectors.
8. Place the compressor chassis on its right side (motor intake down).
9. Remove the four motor mount bolts.
10. Lift the compressor chassis off of the free compressor.
11. Repair and reassemble by reversing steps. Replace motor connections in their original locations.
See figure C or Figure I System Wiring Diagram. Note: There are two possible terminal locations
at 1 and 5. Either location is acceptable.
Motor Tee Fitting
Duct Clamp Location
Motor Intake
Motor Mounting Bolts (4)
Inline Connectors and
Insulated Terminals
Exhaust Duct
Ground Wire Location
Under Capacitor Cover
Brown
Violet
White
Orange
Black
Blue
Figure Group C
Compressor Removal

Page 7
18
1
2
3
4
5
6
7
16
8
911 15
10
12
14
17
13
ITEM PART NUMBER
Cylinder Head 720015
*Head Gasket 730383
*Outlet Valve 730383
Plate Valve 720015
*Inlet Valve 730383
*Cylinder Gasket 730383
Cylinder 720015
*Piston Ring 730383
*Piston Seal 730383
Piston Rod Assembly 720015
*Rider Ring 730383
Motor Mount Bolt, Nut, Washer Commercial
Motor 720015
Motor Tee Fitting 730358
Motor Intake 460784-08
Crossover Tube 460000-08
Motor Elbow Fitting 730357
*Felt 730383
Service Kit 730383
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
* Denotes parts included in the Service Kit.
Figure D
Service Kit Installation

Page 8
Compressor Motor Service Kit Installation Reference Figure D
(Adapted from Gast Operation & Maintenance Technical Manual).
The compressor motor service kit contains the following: Head Gasket, Valves, Cylinder gasket,
Piston Rings, Piston Seals, Rider Ring, and Felts.
Dis-Assembly
Tools: 3/16, 1/4, and 5/16 hex drive or Allen wrench, flat head screwdriver, 12 in. or smaller crescent wrench,
pliers, and 1/4 open face wrench.
1. Disconnect the compressor from the electrical power.
! CAUTION ! You must disconnect the pump from electrical power before servicing it. Failure to do
so can result in severe personal injury or death.
2. Drain the air storage tank and turn the pressure switch to the OFF position.
! CAUTION ! You must vent all air lines to the compressor to remove pressure before servicing.
Failure to do so can result in severe personal injury.
3. Remove the unit from the case bottom and the compressor from the compressor chassis as
described in the Compressor Chassis removal and Compressor Removal subsections above .
4. Remove the motor intake and the crossover tube from the compressor.
5. Remove the cylinder heads, and valve components. DO NOT re-arrange or reorient the valve
components.
6. Remove the cylinder and rings.
Make sure all compressor parts are clean before reassembling. DO NOT use any chlorinated
solvents to clean valves, or any liquids to flush units. The stainless steel valves may be cleaned with
water. All parts, except the valves, can be cleaned with any industrial, non-flammable, non-toxic,
non-petroleum based cleaning solvent.
Assembly
1. Install piston seals, piston rings, and rider ring on each piston.
2. Locate ring joints approximately opposite each other.
3. Finger tighten the cylinders to the bracket with the cylinder screws and washers.
4. With the piston in its top dead center position, adjust each cylinder flush with top of piston and
torque cylinder screws to 150-160 inch lbs. Re-torque second time.
5. Stack the valve components in order as originally assembled.
6. Install the cylinder head and head screws.
NOTE: The exhaust ports in the cylinder heads have been marked by omitting the ends of two of the
fins.
7. Torque all head screws 150-160 inch lbs.
8. Turn the motor shaft by hand at this point to ensure that the rod assembly is not hitting the head.
NOTE: If rod assembly does hit head, loosen cylinders and re-adjust.
9. Replace the motor intake and crossover tube.
10. Re-torque head screws again after running for 10 minutes.
Replacing Aftercooler Housing Parts Reference Figure E
Aftercooler Fan Replacement
Tools: 1/8 hex drive or Allen wrench, #2 Phillips screwdriver, 12 in. or smaller crescent wrench, and thread
locking compound.
1. With compressor chassis extracted remove the five aftercooler housing bolts from the top cover.
2. Lift aftercooler housing and disconnect the fan plug.

Page 9
3. Remove media guard and media from the fan guard assembly.
4. Remove the four aftercooler fan bolts.
5. Replace aftercooler fan and reassemble by reversing steps. Secure aftercooler housing bolts with
thread locking compound.
Aftercooler Assembly Replacement Reference Figure E
Tools: 1/8 and 3/16 hex drive or Allen wrench, flathead screwdriver, 12 in. or smaller crescent wrench,
serviceable thread locking compound and Teflon tape.
1. Remove compressor chassis from case bottom as per the Compressor Chassis Removal section.
2. Loosen the nut of the motor tee fitting which secures the motor/aftercooler tube. Remove the
tubing from the motor tee fitting leaving the nut and ferrule on the tube. Reference Figure Group C
3. Depress the release ring on the aftercooler push-in elbow then pull free the motor/aftercooler
tube previously loosened in step 2.
4. Remove the tank/aftercooler tube from the push-in elbow fitting on the tank by depressing the
release ring and pulling on the tube. Note the tube routing.
5. Rotate the compressor chassis onto its left side (motor exhaust side). Depress the release ring
on the push-in straight fitting at aftercooler and pull tube straight out.
6. Remove the five aftercooler housing screws, disconnect fan plug and remove aftercooler housing.
7. Slide the aftercooler toward the compressor chassis front (power inlet) and remove.
8. Clamp aftercooler block in vise and remove push-in fittings, straight fitting first, then elbow.
Remove aftercooler manifold block screw and aftercooler cover plate. Minimize handling of the
aftercooler to avoid cracking it.
9. Replace aftercooler assembly and reassemble by reversing steps, being careful to reroute tubing
as noted during removal. Seal threaded ends of aftercooler push-in fittings with Teflon tape or
sealing compound and secure aftercooler housing bolts and aftercooler cover plate bolt with a
serviceable thread locking compound.
Aftercooler Housing Screws (5)
Fan Plug Push-In Elbow Fitting
Straight Push-In Fitting
Release Rings
Aftercooler Bolts (4)
Figure E - Aftercooler Removal

Page 10
Replacing Air Storage Tank Components
Pressure Switch Replacement Reference Figure F
Tools: 1/8 hex drive or Allen wrench, #2 Phillips screw driver, 12 in. or smaller crescent wrench, thread seal-
ing compound or Teflon tape.
1. Unplug the AA-75CF compressor and drain the air storage tank.
2. Remove compressor chassis from case bottom as per the Compressor Chassis Removal section.
3. Remove four exhaust baffle screws to allow access to the pressure switch screws.
4. Loosen pressure switch cover screw and remove pressure switch cover.
5. Loosen the unloader valve nut and remove unloader tube.
6. Loosen screws on the pressure switch to release the motor power leads, the control wire leads and
the switch ground.
When replacing leads, be sure the wire pair leading through the motor exhaust chassis to the motor
connects to the MOTOR location on the pressure switch and that the wire pair from the control wire
set, contained in polyester braid, connects to the LINE location of the pressure switch. Similar wire
colors should attach on the same side of the pressure switch.
7. Remove pressure relief valve, female quick connect fitting, and pressure gauge.
8. Using the hex of the coupler fitting, turn pressure switch off of the air storage tank. Guide wires
slowly through the 5/8 grommet during the initial turn.
9. Remove the coupler fitting from the pressure switch.
10. Replace pressure switch and reassemble by reversing steps. Use Teflon tape to seal pipe threaded
fittings.
Note: In addition to exposing wire connections, removing the pressure switch cover exposes a pair of
adjustment screws used to control the AA-75 CF compressor’s cut off pressure and pressure range.
By turning the metal screw clockwise the air storage tank cut off pressure is increased. Turning the
plastic screw clockwise increases the separation between the cut off and cut in pressure. Air storage
tank pressure should never be adjusted to exceed 110 psi.
Check Valve Replacement Reference Figure G
Tools: 12 in. or smaller crescent wrench, Teflon tape or thread sealing compound.
1. Remove compressor chassis from case bottom as per the Compressor Chassis Removal section.
2. Loosen nuts on 1/8 poly fittings and disconnect unloader tube and tank side tank drain tube.
3. Push in the release ring of the push-in elbow fitting on the tank then pull tank/aftercooler tube
loose.
4. Remove push-in elbow fitting and 1/8 tube fitting from the check valve.
5. Remove check valve from the air storage tank.
6. Replace check valve and reassemble by reversing steps. Use Teflon tape to seal pipe threaded
fittings.
Removing the Air Storage Tank Reference Figure G
1. Remove compressor chassis from case bottom as per the Compressor Chassis Removal section.
2. Complete Pressure Switch Replacement procedure omitting steps 7, 9 and 10.
3. Complete Check Valve Replacement procedure omitting steps 4 and 6.
4. Remove three tank assembly screws and the 1/8 tube fitting on the tank bottom.
5. Rotate the air storage tank slowly clockwise and remove through the exhaust duct side of the
compressor chassis leading with the tank bottom.

Page 11
Replacing Pneumatic Tubing
1. Loosen tube at both ends by depressing the push-in fitting release ring then the tube free or by
removing the fitting nut.
2. Note the ferrule type on both ends of the tube then discard tube section and attached ferrules.
3. Select the correct tubing size and cut to the appropriate length:
Motor / Aftercooler tube 13.0 in.
Tank / Aftercooler tube 8.1 in.
Unloader tube 10.0 in.
Case side tank drain tube 15.0 in.
Tank side tank drain tube 24.0 in.
Case drain tube 15.5 in.
4. Slide the fitting nut and the appropriate new ferrule onto the tube and re-attach. When replacing
tubing routed to the aftercooler, make aftercooler connections first.
Unloader Valve Nut
Peak Pressure Adjustment Compressor Cut-In/Cut-Off
Pressure Differential Adjustment
Control Wire Connections
Motor Wire Connections
Figure F
Pressure Switch Leads
Tank Assembly Screws
Check Valve
1/8 Tube Fittings
Push-In Elbow Fitting
Figure G
Tank Removal
Star Washer

Page 12
Removing the Electronics Module Reference Figure I
Tools: 1/8 hex drive or Allen wrench and serviceable thread locking compound.
1. Remove compressor chassis from case bottom.
2. Uncouple control wire set connector and motor wire set connector.
3. Remove the two electronics mounting screws.
4. Reattach by reversing steps. Install fasteners using a serviceable thread locking compound.
Removing the Intake Fan Reference Figure H
Tools: 1/8 hex drive or Allen wrench, flat head screwdriver, side cutters and serviceable thread
locking compound.
1. Remove compressor chassis as per the Compressor Chassis Removal section.
2. Remove the 9 perimeter screws of the top cover.
3. Remove pneumatic tubing at tank elbow push-in fitting, motor tee fitting and tank drain poly
fitting.
4. Lift off the top cover.
5. Remove the electrical cover on the fan motor to expose the electrical connections
6. Remove the two wire nuts and pull the two wire pairs through the 1/4 grommet.
7. Remove the two intake fan screws located on the underside of the top cover.
8. Remove the fan motor being careful not to bend the impeller.
9. Replace intake fan and reattach by reversing steps. Install fasteners using a serviceable thread
locking compound. Strip wires 1/4 in. and reconnect using wire nuts. Connect one orange and one
purple wire to each black fan lead. Individual wire orientation is not critical.
Transformer Replacement Reference Figure I
Tools: 1/8 hex drive or Allen wrench and thread locking compound.
1. Remove compressor chassis from case bottom.
2. Uncouple the connector between the transformer and the electronics box.
3. Remove the four transformer bracket screws.
4. Replace and reassemble by reversing steps. Apply thread locking compound to screws when
installing. Be sure star washers are replaced under the bolt heads contacting the brackets and
between the brackets and the chassis base.
Note: To check the success of any repair perform the procedure detailed in the Verification section.
Electrical Cover
Intake Fan Screws
(one shown- second opposite 180 deg.)
Wire Nuts
Figure H Intake Fan Removal
Motor Wire Set
Connector
Figure I Electronics Module
Elec. Mounting Screws
Transformer Bracket
Screws & Star Washers
Transformer Wire
Set Connectors Control Wire
Set Connector

Page 13
AA-75CF SYSTEM WIRING SCHEMATIC
AA-75CF SYSTEM PNEUMATIC SCHEMATIC
Figure J
Figure K

Page 14
ITEM PART NUMBER QUANTITY
Case, Mil. Spec., Bottom 410128 1
Identification Plate, Case 420229 1
Weather stripping 730375 63in.
Case Bumper 730109 4
SCREW, Hex head,Stnl, Commercial 4
1/4-20 x 1 1/4
1
2
3
4
5
PARTS LIST
ITEM PART NUMBER QUANTITY
Case, Mil. Spec., Top 410128 1
Case Leg 460776-08 2
Case Leg Pivot 460802-08 4
Case Leg Bumper 460828 4
NUT, Nylok, Stnl, 10-32 Commercial 4
230V Power cord 840007 1
120V Power cord 840049 1
Cord Pouch 460649-08 1
BOLT, Button head socket, Commercial 4
Stnl,10-32 x 5/8
Washer, Sealing, Stnl, #10 510353 4
1
2
3
4
5
6
7
8
9
10
Reference Figure 1
Reference Figures 2 & 3

Page 15
1
2
3
4
5
2
3
5
8
6
7
4
1
Figure 1 Case Base
Figure 2 Case Top - Inside
9
10
Figure 3 Case Top - Outside

Page 16
ITEM PART NUMBER QUANTITY
Chassis Base 330260 1
Vibration Isolator 730314 3
SCREW, Flathead Phillips, Commercial 6
Stnl, 1/4-20 x 1/2
Chassis Corner Bracket 330261 4
Motor Mount 330255-08 1
NUT, Serrated flange, Stnl, 5/16-18 Commercial 4
WASHER, Mil. Spec. 15795-812 Commercial 4
BOLT, Hex head, Stnl, 5/16-18 x 2 Commercial 4
Chassis Corner Angle 460747-08 3
Chassis Side Angle 460748-08 1
Chassis Cover Channel, Front 460787-08 1
Chassis Cover Channel, Left 460788-08 1
Chassis Cover Channel, Back 460789-08 1
Chassis Cover Channel, Right 460770-08 1
SCREW, Button head socket, Commercial 24
Stnl, 10-32 x 3/8
SCREW, Button head socket, Commercial 16
8-32 x 3/8
WASHER, int. star, #10, stnl. Commercial 24
WASHER, int. star, #8, stnl. Commercial 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Reference Figure 4
Reference Figure 5
ITEM PART NUMBER QUANTITY
Air Storage Tank 330254-08 1
Check Valve 730332 1
FITTING, Brass, Push-In Elbow, 730359 1
1/2 Tube x 1/4 MPT, Viton type
FITTING, Brass, 730117 2
1/4 Poly x 1/8 MPT
TUBING, Air Brake, 1/4 730130 12.5 in.
SCREW, Button head socket, Commercial 3
Stnl, 10-32 x 3/8
WASHER, int. star, #10, stnl. Commercial 3
1
2
3
4
5
6
7

Page 17
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15 17
16
18
Figure 4 Compressor Chassis
1
2
3
4
5
6
Figure 5 Air Storage Tank

Page 18
ITEM PART NUMBER QUANTITY
Transformer 875013 1
Transformer Bracket 460818-08 1
BOLT, Pan head Phillips, Commercial 4
Stnl, 10-32 x 2
NUT, Nylok, Stnl, 10-32 Commercial 4
SCREW, Button head socket, Commercial 4
Stnl, 10-32 x 3/8
WASHER, nylon, 0.062 thk 510019 2
WASHER, int. star, #10, stnl. Commercial 6
Reference Figure 6
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
12
13
Reference Figure 7
ITEM PART NUMBER QUANTITY
Compressor 720015 1
Motor Intake 460784-08 1
Crossover Tube 460777-08 1
FITTING, A/B branch tee, 730358 1
1/2 tube x 1/4 MPT
FITTING, A/B Male Elbow, 730357 1
3/8 tube x 1/4 MPT
FITTING, Plug, 730098 2
1/4 MPT x 1/4 Hex countersink
FITTING, 45 deg., 730200 2
1/4 Flare x 1/4 MPT
HOSE CLAMP, Marine grade, 510416 4
7/16 - 25/32, Miniature width
TUBING, 1/2” I.D. x 0.063 wall AA-83A 1 in.
BOLT, Socket head, Stnl, Commercial 4
5/16-18 x 1 1/2
WASHER, Mil. Spec. 15795-812 Commercial 4
NUT, Nyloc, Stnl, 5/16-18 Commercial 4
WASHER, int star, #8, stnl 510419 1

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1
2
7
3
465
Figure 6 Transformer
1
2
3
4
5
6
7
8
9
10
11
12
Figure 7 Compressor
13

Page 20
ITEM PART NUMBER QUANTITY
Intake Fan 330259 1
Intake Fan Gasket 460779 1
SCREW, Button head socket, Commercial 2
Stnl, 10-32 x 5/8
Intake Hose 730339 12 in.
HOSE CLAMP, Marine Grade, 510400 2
1 13/16 - 2 3/4
Intake Fan Filter Assembly 730334 1
BOLT, Flat head Phillips, Commercial 4
Stnl, 6-32 x 1/2
NUT, Nyloc, Stnl, 6-32 Commercial 4
1/4 Grommet 870185 1
WIRE NUT, Blue Commercial 2
WASHER, #10 Ext Star, Stnl 510421 1
1
2
3
4
5
6
7
8
9
10
11
ITEM PART NUMBER QUANTITY
Aftercooler Housing 460749-08 1
SCREW, Button head socket, Commercial 5
Stnl, 10-32 x 3/8
Aftercooler Fan 330264 1
Aftercooler Fan Filter Assembly 730333 1
BOLT, Flat head Phillips, Stnl, Commercial 4
6-32 x 2 1/4
NUT, Nyloc, Stnl, 6-32 Commercial 4
Aftercooler Assembly 330262 1
Aftercooler Cover Plate 460793-08 1
SCREW, Socket head, Stnl, Commercial 1
1/4-20 x 3/4
FITTING, Brass, Push-In Elbow, 730359 1
1/2 Tube x 1/4 MPT, Viton type
FITTING, Brass, Push-In Straight, 730361 1
1/2 Tube x 1/4 MPT, Viton type
TUBING, Air brake, 1/2 in. 730256 18.5 in
WASHER, int. star, #10, stnl. Commercial 3
1
2
3
4
5
6
7
8
9
10
11
12
13
Reference Figure 8
Reference Figure 9