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T e c h n o l o g y ,   L L C

DIESEL PRO

®

 245

TECHNICAL MANUAL FOR DTNA

15

www.davco.com

800-328-2611

Saline, MI  48176

P. O. Box 487

DAVCO Technology, LLC

F1353 REV B

WARRANTY POLICY

* Purchase Date: The date of the first retail purchase of a new vehicle or piece of equipment from the OEM dealer or factory. For 

“Over the Counter” purchase: The date of sale to the first retail customer.
**Products submitted for Warranty consideration will be inspected by DAVCO personnel. Re-work or replacement will be based 

on DAVCO’s Warranty procedure and/or the results of their evaluation. DAVCO’s Warranty Program does not in any way consti-

tute a product guarantee.

Please review DAVCO’s Product Warranty terms and conditions carefully before installing and/or using a 

DAVCO product.
Diesel Pro® 243, Diesel Pro® 245, Fuel Pro® 382, Fuel Pro® 482, Fuel Pro® 483, Fuel Pro® 485, Fuel Pro® 

487, Fuel Pro® 488, Industrial Pro®, Pro-Chek®, Sea Pro®

DAVCO Technology, LLC warrants these products to be free of defects in material and workmanship for five years, 500,000 miles 

or 10,000 hours (whichever comes first) and electrical parts for two-years, 200,000 miles or 4,000 hours (whichever comes first) 

from the purchase date*.

Shop Pro®

DAVCO Technology, LLC warrants the Shop Pro (except for the motor) to be free of defects in material and workmanship for two 

years from the date of purchase. The Shop Pro motor is warranted for one year from date of purchase.

REN Products, EyeMax®, and Fuel Pro® 384

DAVCO Technology, LLC warrants these products to be free of defects in material and workmanship for two-years or 200,000 

miles (whichever comes first) from the purchase date.

By installing and/or using the product, you agree to be bound by the following:

This Warranty does not apply to:

• 

Failure or inadequate performance due to improper installation, misuse, misapplication, faulty installation, alteration/

modification, poor maintenance, neglect, accident, or conditions resulting from actions outside DAVCO’s control, including 

but not limited to the use of contaminated, corrosive, and unapproved fluids.

• 

Downtime, loss of use, loss of profits or income, loss of capital, cost of substitute equipment, living expenses, claims by 

purchaser’s customers or other third parties, or other incidental, special or consequential damages.

• 

Attachments, accessory items, and parts not manufactured or distributed by DAVCO.

• 

Any aftermarket or OEM component not approved specifically to work with a DAVCO manufactured product

• 

Product that has been installed with aftermarket parts or altered or modified in any way.

• 

Normal wear and tear, abuse, vandalism, acts of God, improper storage or handling, disasters such as flood, fire, or war, 

failure to operate, maintain or repair in accordance with instructions, or failure to repair the vehicle into which the product is 

installed in accordance with the vehicle manufacturer’s instructions or common maintenance practices.

This warranty is the sole warranty made by DAVCO. DAVCO makes no other warranties, expressed or implied, of merchantability 

or fitness for a particular purpose.

In the unlikely event of a defective product, DAVCO will either rework the defective product or replace it at DAVCO’s discretion. 

If you feel you have a warrantable issue, contact DAVCO at 800-328-2611 for a Return Goods Authorization (RGA) number **. An 

RGA number is required prior to the return of any product.

Summary of Contents for DIESEL PRO 245

Page 1: ...ns 1 How it Works 1 SEEING IS BELIEVING 2 Dimensions and Specifications 3 E E Important Safety Precautions 4 Installation Instructions 5 12VDC and 24VDC Pre heater Installation 6 Visual Diagnostics Air vs Vapor Bubbles 7 Visual Diagnostics with Clear Cover 8 Diagnostic Procedures Air Leaks 9 Diagnostic Procedures Check Valve and Heater Testing 10 Filter Change Procedure 11 Preventative Maintenance...

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Page 3: ...nto the clear cover Contaminants and emulsified water are captured by the filter media Fuel level continues to rise to maintain a fuel path through the clean filter media with low restriction Clean water free fuel exits the Diesel Pro and flows to the engine fuel injection system Applications 2017 engine models Detroit DD5 and DD8 Meets Exceeds 2017 engine manu facturer s stringent water separatio...

Page 4: ...e media removes 98 of free and emulsified water This far exceeds the performance of cellulose media When new the fuel level in the filter will be very low with minimal restriction As the filter is used contaminants collect on the filter from the bottom up Fuel rises on the filter indicating remaining filter life Fuel level increases in clear cover As contaminants collect on the filter the fuel ris...

Page 5: ...In Connection M22 Fuel Out Connection M22 Filter Service Clearance Min 3 5 88 9 mm Max Fuel Flow 60 gph Electric Pre heater 12VDC 24VDC 155W FILTRATION PERFORMANCE AT 55 GPH Micron 8 Coarse water removal 98 Emulsified water removal new filter 93 Emulsified water removal end of life filter 50 Dirt holding capacity grams 70 0 00 0 20 0 40 0 60 0 80 1 00 1 20 1 40 1 60 1 80 2 00 0 20 40 60 80 100 120...

Page 6: ... Fire Prevention Heated fuel can form combustible vapor mixtures in the area around the fuel source To eliminate the potential for fire keep open flames sparks or other potential ignition sources away from the work area Do not smoke during filter replacement or service operations Inhalation Precaution Always perform engine or vehicle fuel system maintenance in a well ventilated area that is kept f...

Page 7: ...n the job be sure that the inner liner of the fuel hose is not cut by the fitting which can cause check valve performance issues Make sure hoses are clean and free of debris before installing To avoid damaging the aluminum Diesel Pro body do not over tighten fuel lines or fuel line fittings 1 Route the fuel supply line from the pick up on the fuel tank to the Diesel Pro inlet labeled Fuel In 2 Rou...

Page 8: ... the drain valve HEATER PORT 2 Remove the plug from the pre heater port 3 Apply liquid thread sealant to the pre heater threads and install into the bottom plate Tighten to 15 30 ft lbs 4 Connect the chassis harness to the Diesel Pro harness 5 Connect the power lead to the fused accessory side of the ignition switch The fuse rating depends on the pre heater installed Approved fuse ratings 12VDC Sy...

Page 9: ...ost likely vapor bubbles Vapor Bubbles All diesel fuel has some level of entrained air caused by the natural splashing that occurs in the fuel tank during normal vehicle or equipment operation Vapor bubbles develop in the Diesel Pro because the pressure inside the Diesel Pro is lower than the atmospheric pressure in the fuel tank Vapor bubbles can vary from champagne size up to in diameter They ma...

Page 10: ...re seen flowing in with the fuel Î ÎCheck all fittings and lines from the fuel tank to the Fuel Processor Check lower and upper collar o rings Fuel drains back to the fuel tank when changing the fuel filter or draining separator Î ÎRemove the check valve assembly Clean or replace and retest Check air leaks in the fuel system Fuel level is at the top of the filter Low power Î ÎChange the filter at ...

Page 11: ...bles persist test as follows a Remove the Diesel Pro from the chassis b Plug the fuel outlet port Do not remove filter cover collar vent cap drain valve and or check valve If the Diesel Pro is equipped with a pre heater do not remove the pre heater c Apply 15 PSI of air pressure at the fuel inlet Immerse the Diesel Pro in a tank of water and look for air bubbles d Correct the source of the air lea...

Page 12: ... the check valve spring and spring retainer If the spring or spring retainer is broken or if the check ball has groves nicks or is out of round replace with a check valve service kit Otherwise clean and reassemble the check valve assembly 5 The spring retainer snaps into a groove in the check valve body 6 Replace the check valve assembly into the body and torque to 25 40 ft lbs 7 Connect the fuel ...

Page 13: ...e the filter element from the Diesel Pro by pulling upward 8 Install the new filter element Position the filter element so the key is lined up with the keyway on the separator plate of the housing Use the arrow on the top of the endplate to align the filter Ensure the filter element is fully seated by firmly pushing on the endplate The filter should not rotate freely Key Endplate Keyway Arrow Sepa...

Page 14: ...80 days Weekly water drains 1 Turn off the engine and remove the vent cap 2 Place a suitable container under the Diesel Pro and open the drain valve 3 Collected water will flow into the container When fuel begins to flow out the drain close the drain valve Drain the least amount of fuel as possible 4 Install the vent cap and tighten it by hand until it clicks 5 Start the engine and raise the RPM f...

Page 15: ...ollar o ring not included D DVC 243017DAV Cover with Red Stripe Collar Spring Vent Cap and Vent Cap O ring Collar o ring not included D E DVC 232009DAV O ring Service Kit F DVC 380056DAV Spring G DVC 245013DAV Check Valve Service Kit Includes Ball Spring and Retainer G H DVC 245010DAV Check Valve Assembly Includes Body and Check Valve Service Kit H I DVC 245011DAV Adapter 14 to M22 J DVC 102821SDA...

Page 16: ...ATER IN FUEL WIF SENSOR PARTS DVC 103595DAV 12VDC 155W PTC Pre heater Metri Pack Connector 14 UNF Threads Harness Length 7 50 Freightliner Only DVC 102697DAV Two Pin WIF Metri Pack Connector 20 UNF Threads Harness Length 17 5 DVC 102770 Two Pin WIF Metri Pack Connector 20 UNF Threads Harness Length 6 50 Freightliner DVC 103433DAV WIF Metri Pack Digital WIF Harness Length 15 75 F1353 REV B ...

Page 17: ...les whichever comes first from the purchase date By installing and or using the product you agree to be bound by the following This Warranty does not apply to Failure or inadequate performance due to improper installation misuse misapplication faulty installation alteration modification poor maintenance neglect accident or conditions resulting from actions outside DAVCO s control including but not...

Page 18: ... will be issued for returns in which DAVCO inadvertently shipped incorrect quantity or product Overstock Returns for ordering more product s than required or incorrect part s will be accepted within 60 days from the date of purchase Proof of purchase will be required i e original invoice delivery receipt These types of return s are subject to a minimum restock fee of 40 or 40 00 whichever is highe...

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