Avery Weigh-Tronix TT-830, Service Manual

Page: 37 / 50

TT-830 SOLUTION SERIES BENCH SCALE
INTERNAL BATTERY & CHARGER PC. BOARD
PARTS
AND
ASSY (KIT P/N 51799-0057)
37
PARTS LIST
ITEM
NO. DESCRIPTION W-T P/N QTY
1 Battery Bracket 51793-0012 1
2 Screw,flat hd #6-32 x 3/8"L 16254-0249 4
3 Weather Stripping, (4 pieces as shown) 1045-05982 4
4 Battery, 6V, 3.2A-H 15553-0082 2
5 Battery Cover 51792-0013 1
6 Screw,pan hd #4-40 x 3/8"L 14473-0124 4
7 Battery Jumper Cable Assy 51809-0030 1
8 Battery –to- Charger Bd. Cable Assy 51809-0014 1
9 Battery Charger Board Assy 51770-0019 1
10 Charger Board –to- Main Board Cable Assy 51809-0022 1
11 Standoff, m/f, #6 x ¼” HX x 9/16”L 15437-5000 2
12 Mounting Device 17887-0010 3
13 Cable Tie 13762-0019 3
14 Standoff, m/f, #6 x ¼” HX x 5/8”L 15437-0456 2
Internal Battery / Battery Charger PC Board Installation Instructions
1. Remove shroud. (refer to “parts & ass’y” pages in this manual when needed)
2. Remove loadbridge by removing bolts attaching loadbridge to quartzell. (torque wrench required to re-assemble)
3. Remove the two screws from main board (or analog board if installed) where battery charger pc board will be installed (see illustration). These screws
will be used to install battery charger pc board.
4. Install standoffs (items 11 & 14). Use the two longer standoffs (item 14) if you have analog board, or two standoffs each of (items 11 & items 14) if not
using analog board). (see illustration)
5. Install battery charger board, (item 9) on standoffs using screws referred to in step 3.
6. Install battery bracket (item 1) with four screws (item 2) as shown in illustration.
7. Cut weather stripping (item 3) into desired lengths and apply as shown.
8. Place batteries into battery bracket and install cover (item 5) on battery bracket using four screws (item 6).
9. Place the three mounting devices (item 12) as shown.
10. Remove the 2-pin jumper from P2-1 / P2-2 on main board.
11. Connect batteries with battery jumper cable assy (item 7) as shown.
12. Using battery-to-charger board cable assy (item 8), connect red wire to positive terminal of one battery, then connect black wire to negative terminal of
other battery as shown. Now connect the 3-pin connector to P34 on charger board (item 9).
13. Connect battery charger board to main board using charger board-to-main board cable assy (item 10) as shown.
14. Attach cable assemblies (items 7,8 & 10) to the already attached mounting devices (item 12) with cable ties (item 13) as shown. DO NOT FULLY
TIGHTEN CABLE TIES AT THIS TIME.
15. Verify that the wires in cable assemblies do not touch the quartzell or loadbridge, or be pinched by them in any way, then finish tightening the cable ties.
(REF: step no.14)
16. Make sure scale is unplugged from wall outlet. Press any key to verify that scale turns on and operates.
17. Press “off” key to verify scale turns off.
IMPORTANT: SCALE MUST BE PLUGGED IN TO WALL OUTLET, AND TURNED OFF TO PERFORM VOLTAGE CHECK AND/OR
CHARGE THE BATTERIES.
18. Connect power cord to wall outlet and verify that the battery voltage is higher than 12.5 VDC, and is increasing.
19. When the battery is 90% of full charge, the green LED (DS1) on charger board will flash on and off. When fully charged the LED will stay on
continuously. BATTERY DOES NOT NEED TO BE 100% CHARGED. Normal charging time is approx. 4-6 hr. If battery is totally discharged, a longer
charging time may be necessary. The charger system will automatically shut off when battery is fully charged.
20. When the green LED begins to flash, unplug the scale and reinstall the loadbridge and shroud. Using a torque wrench tighten the load bridge bolts to
specs (90±5 ft. lbs).