Installing Seed Sensors—1990

1. IMPORTANT:

   
   A49526-UN-18JUL02

   Left-To-Right Opener Numbering

   
   A49527-UN-19JUL02

   Left-To-Right Venturi Numbering

   
   A49140-UN-19JUL02

   Harness On Same Side As Hose Section

   A - Hose Section, 152 mm (6 in)

   B - Hose Section, 229 mm (9 in)

   C - Sensors

   D - Couplers

   E - Couplers

   Hose ends must be cut off in alternating lengths to allow for sensor clearance.

   IMPORTANT: Hoses must be renumbered after being cut for proper identification and installation.

   NOTE: Seed delivery tubes are numbered and pre-cut according to match each opener and venturi. Openers and venturis are numbered in sequence from machine left to right.

   Cut 152 mm (6 in) from end of odd-numbered hoses and renumber new hose ends. Save removed portions for sensor installation.

---




2. Cut 229 mm (9 in) from end of even-numbered hoses and renumber new hose ends. Save removed portions for sensor installation.

3. IMPORTANT: Avoid seed plugging or damage. Sensor is designed for seed flow in one direction only. Install seed sensor with harness facing short hose sections (toward rear of machine).

   Attach seed sensors (C), in proper direction, to hose sections with couplers (D) and hose clamps.

4. Loosely install coupler (E) on other end of sensor with one hose clamp. Tighten clamp enough to prevent coupler from falling off.

5. NOTE: Use Lubricating Soap (AR54749), glass cleaner, or a heat gun to ease the hose installation.

   
   A49528-UN-24JUL02

   A - Hose Section, 152 mm (6 in)

   B - Hose Section, 229 mm (9 in)

   C - Harness Leads

   Lubricate end of 152 mm (6 in) hose section (A) on sensor assembly and number one venturi surface and press completely onto venturi fitting.

---




6. Lubricate end of 229 mm (9 in) hose section (B) on sensor assembly and number two venturi surface and press completely on venturi fitting. Continue with sensor installation in numbered order and in alternating pattern across machine.

7. 
   A49221-UN-24JUL02

   
   A49355-UN-24JUL02

   A - Tie Band

   B - Plug

   C - Harnesses

   D - Potted Junction

   Coil sensor harness and secure to delivery hose using tie bands (A).

---




8. Connect sensor plugs (B) to sensor harness (C) and route over hose supports.

9. Place potted junction (D) and excess harness in end of frame tube.

10. Route main harness to front of machine and secure using tie bands.