Owner's Manual
1. Turn off dispenser and relieve line pressure.
2. Remove old nozzle and drain into approved container.
3. Inspect o-ring or face seal gasket for damage. Replace if necessary.
4. Install new nozzle - do not use thread sealant (Teon tape, anti-seize or any other kind
of sealant).
5. Tighten rmly, approximately 15 - 20 lbf•ft / 20.3 - 27.1 N•m, but do not overtighten.
6. Pressurize system and visually inspect for leaks.
7. Test nozzle for proper automatic shut off between 5 - 10 gpm / 18.9 - 37.9 Lpm.
DO NOT OVERTIGHTEN. USE WRENCH ON HOSE NUT ONLY.
Polymer Diesel Exhaust Fluid Nozzles
Polymer-DEF
NOZZLE
Model #873504, & 873591
Recommended Installation, Maintenance
and Inspection Instructions
Husky Corporation • 2325 Husky Way • Pacic, MO 63069 • Phone: (800) 325-3558 • Fax: (636) 825-7300 • www.husky.com
Page 1 009351-2 6/2013
INSTALLATION INSTRUCTIONS
IF DRIVE OFF OCCURS
TESTING / MAINTENANCE / INSPECTION
WARNING!
Designed for use at diesel exhaust uid dispensing
facilities only.
• Inspect dispensing system for damage.
• Check for loose or damaged spout.
• Check spout tip - should be in round and sensing port should be clear of debris.
• Perform ow test of nozzle automatic shut off between 5 - 10 gpm / 18.9 - 37.9 Lpm.
• Check for leaks.
Daily
• Check for leaks / stains.
• Check for loose spouts.
• Check for damage.
• Check for bent lever.
• Check for broken clip / trigger
spring.
• Check nozzle for crystallization.
Monthly
• Check nozzle automatic shut off
between 5 - 10 gpm / 18.9 -
37.9 Lpm.
• Check "remove after" date.
• To remove crystallization, clean / rinse
DEF products by ushing all internal
passages and external parts with
deionized water.
• All drive aways, maintenance and
inspection activities must be logged
using the serial number of the individual
product.
• Apply city, state, or federal testing
regulations as appropriate.
ANY TEST / INSPECTION FAILURE
REQUIRES IMMEDIATE EQUIPMENT
REPLACEMENT OR REMOVAL FROM
SERVICE.
MADE IN THE USA
Important safety InstructIons - save these InstructIons In a readIly accessIble locatIon.




