Apollo Oil-Less ACE User manual

Maintenance & Troubleshooting

Oil-Less “ACE” Series Compressor

Description:

Apollo Dental Products’ Air Compressors are designed to provide years of trouble-free, reliable service. However, some components
do require periodic attention and service. Failure to adequetly service these components will not only cause failure of the compressor,
but will also result in unsatisfactory service. If you require additional information please contact ADP Technical Support between the
hours of 6:00 a.m. and 4:00 p.m. (Pacific Standard Time).

Maintenance:

A. Storage Tank

Check Water Build-Up In Storage Tank Monthly. To check, locate drain valve on bottom of storage tank and slowly

open. If moisture is present, allow all moisture to be expelled before closing the valve.

B. Air Intake Filter-Muffler

Replace Air Intake Filter-Muffler Annually. A dirty air intake filter-muffler decreases the efficiency of the

compressor and increases oil consumption. Replacement filter-muffler part #ACP90500.

C. Condensate Drain Canister

Empty Condensate Drain Canister Weekly.

D. Pump-Up Times

Check Pump-Up Times Monthly. Refer to table for proper time readings.

NOTE: Never lubricate this oil-less compressor. The Teflon-filled compressor rings are
self-lubricating and do not require oil. The motor and crankshaft bearings are
permanently lubricated.

Compressor Pump-Up Chart

Standard Compressor Models Desiccant Compressor Models

Compressor Model Compressor Pump-Up Time 80-100 PSI Compressor Model Compressor Pump-Up Time 80-100 PSI

ACE11 30-40 Seconds ACE11D 50-57 Seconds
ACE12 30-40 Seconds ACE12D 50-57 Seconds
ACE21 15-25 Seconds ACE21D 20-30 Seconds
ACE22 15-25 Seconds ACE22D 20-30 Seconds
ACE2F 15-25 Seconds ACE2FD 20-30 Seconds

Apollo Dental Products, Inc. • 245 W. Dakota Ave. • Clovis, CA 93612 • Technical Support

559/292-1444 • 800/233-4151 • Fax [phone] • www.apollodental.com

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AMI60319 Rev. 12/00

Maintenance & Troubleshooting

Oil-Less “ACE” Air Compressor

Technical Service - [phone]

PROBLEM: Compressor will not start.

Cause: No power at motor terminals.
Remedy: Check for voltage at wall outlet. If proper voltage is measured there and not at motor terminals, check for:

1. Broken or loose wire.

2. Pressure switch decfective or out of adjustment (contacts should be closed if tank pressure is below 80 PSI).

3. Defective On/Off switch (DPST). Replace.

Cause: Defective capacitor (Motor may hum but not start).
Remedy: 1. Short capacitor lead terminals and test capacitor using OHM meter, checking for resistence rise. If there is no

resistence, capacitor is defective and must be replaced.

2. Relay coil open. Check for continuity across relay coil terminals 2 and 5. If no continuity, relay should be replaced.
(Relay is located inside capacitor starting assembly box).

Cause: Thermal overload cut-off on high temperature.
Remedy: 1. Allow motor to cool. Compressor should then automaticaaly restart.

Cause: Frozen motor/compressor.
Remedy: 1. Turn off electrical power. Check to see if compressor fan will rotate by hand. If not, replace compressor head. Contact

ADP for Return Authorization on any part under warranty.

PROBLEM: Motor runs for only a few seconds or “chuggs”.

Cause: Low voltage.
Remedy: 1. Check line voltage, it should be at least 215 volt (230 volt units) when compressor is running, or 105 volts (115 volt

units). Install ADP transformer if necessary.

Cause: Blockage in air line.
Remedy: 1. Remove discharge line flex hose from head and test run. If unit runs correctly, check for obstruction in air line to

storage tank. It most likely would be at an orifice or other restriction.

PROBLEM: Compressor head runs but will not pressurize to 100 psi.

Cause: Quick exhaust valve or pressure switch unloader valve are not closing when compressor runs.
Remedy: 1. Quick exhaust valve or pressure switch unloader valve may be dirty or defective. Clean or replace.

Cause: Clogged air intake filter-muffler.
Remedy: 1. Check for excessive dirt/dust accumulation. Clean or replace.

Cause: Air leaks in system piping.
Remedy: 1. Check for leaks using soapy water solution. Repair any system piping air leaks.

Cause: Blockage in air line.
Remedy: 1. Inspect all air lines for restrictions.

Cause: Leak in compressor unit.
Remedy: 1. Close the storage tank shut-off valve. With compressor running, check discharge line flex hose, pressure safety valve

tank drain valve and all fitting for leaks, using soapy water.

Cause: Insufficient discharge.
Remedy: 1. Remove discharge line flex hose and check for pressure build-up by holding finger over discharge outlet fitting. If

low or no pressure build-up occurs head is defective. Contact ADP for Return Authorization information.

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