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SKU 98904 

for technical questions, please call 1-800-444-3353

 

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Specifications

Operating Pressure

0 -160 PSI

Air Inlet and Outlet Size

Inlet: 1/2” -14 NPT (female thread)
Outlet: 1/4”-18 NPT (male thread)

Features

Replaceable air filter element

Filter

40 micron

save this Manual

You will need the manual for the safety warnings and precautions, assembly instructions, operating and main-

tenance procedures, parts list and diagram.  Keep your invoice with this manual.  Write the invoice number on 

the inside of the front cover.  Keep the manual and invoice in a safe and dry place for future reference.

safety Warnings and precautions

Warning: When using tools, basic safety precautions should always be followed to reduce the risk of 

personal injury and damage to equipment.
read all instructions before using this tool!

Keep work area clean

1. 

.  Cluttered areas invite injuries.

observe work area conditions

2. 

.  Do not use in damp or wet locations.  Don’t expose to rain.  Keep work 

area well lighted.  Do not use in the presence of flammable gases or liquids.

Keep children away

3. 

.  Children must never be allowed in the work area.  Do not let them handle this product 

or other machines, tools, or extension cords.

store idle equipment

4. 

.  When not in use, this product must be stored in a dry location to inhibit rust.  Always 

lock up and keep out of reach of children.

use the right tool for the job

5. 

. Do not attempt to force a small tool or attachment to the work of a larger 

industrial tool. There are certain applications for which this product was designed. It will do the job better 

and more safely at the rate for which it was intended. Do not modify this product and do not use this product 

for a purpose for which it was not intended. 

do not overreach

6. 

.  Keep proper footing and balance at all times. Do not reach over or across running 

machines.

dress properly

7. 

.  Do not wear loose clothing or jewelry as they can be caught in moving parts.  Protective, 

electrically nonconductive clothes and nonskid footwear are recommended when working.  Wear restrictive 

hair covering to contain long hair.

use eye and ear protection

8. 

.  Always wear ANSI-approved impact safety goggles when using and servicing 

this product and/or air tools. Wear a full face shield if you are producing metal filings or wood chips. Wear 

a NIOSH-approved dust mask or respirator when working around metal, wood, and chemical dusts and 

mists.

Maintain tools with care

9. 

.  Keep clean for better and safer performance. Follow instructions for lubricating 

and changing accessories. Inspect periodically and, if damaged, have them repaired by an authorized 

technician. The Filter/Regulator must be kept clean, dry, and free from oil and grease at all times.

disconnect power

10. 

. Unplug air compressor (not included) when not in use.

do not exceed maximum air pressure of 160 psi

11. 

.

avoid unintentional starting

12. 

.  Do not carry any air tool with your finger on the trigger, whether it is plugged 

in or not.

Summary of Contents for Central Pneumatic 98904

Page 1: ...ts reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Dia grams within this manual ma...

Page 2: ...the job 5 Do not attempt to force a small tool or attachment to the work of a larger industrial tool There are certain applications for which this product was designed It will do the job better and m...

Page 3: ...the influence of alcohol or drugs 16 Read warning labels if taking prescription medicine to determine if your judgment or reflexes are impaired while taking drugs If there is any doubt do not operate...

Page 4: ...egulator 3B onto the Nipple 1B See Figure 2 Thread in the Air Valve 5B into the Air Regulator 3B See Figure 3 3 Figure 4 2B 1B 3B Figure 5 4 Thread the Regulator Handle 1C into the Air Regulator 3B un...

Page 5: ...ou want Look at the 2 Pressure Gauge 6B while you turn the Adjusting Screw Stop turning the Regulator Handle 1C when the Pressure Gauge needle points to the desired pressure See Figure 6 You must drai...

Page 6: ...rt Description 1B Nipple 2B Elbow 3B Air Regulator 4B Plug 5B Air Valve 6B Gauge Part Description 1A Plug 2A Filter Cap 3A Gasket 4A Plug 5A Air Valve 6A Filter 7A Housing 8A Filter Washer 9A Retainin...

Page 7: ...T ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE O...

Page 8: ...cidental or consequential damages so the above limitation of exclusion may not apply to you This warranty is expressly in lieu of all other warranties express or implied including the warranties of me...

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