Copyright
Trace Engineering Co., Inc.
Telephone (360) 435-8826
Part Number 3471
5916 195th Street, NE
Fax (360) 435-2229
Released: Thursday, April 29, 1999
Arlington, WA 98223 USA
PMO-DCBB/Kit/SW/DR
5-15
PMO-DCBB/Kit/SW/DR
The PMO-DCBB kit includes a DC negative bonding block with a
500-amp, 50-millivolt shunt and a bus bar. Add the /SW or /DR
suffix to specify the type of inverter used.
Tools Required: 5/16, 3/8, 9/16, wrenches; 13/64” drill bit, 1/8 &
5/16” Allen wrench, straight slot screwdriver
Assembly Sequence Pre-assemble the bonding block by
installing the set screws using a flat-bladed screwdriver and Allen
wrenches as required. Place a #10 internal-tooth starwasher
(486) over a 10-32 x 3/8” machine screw. Drill out the dimples and
insert a machine screw in one of the lower holes from the outside
of the side panel. Place a ¼” external tooth starwasher over the
machine screw on the inside of the side panel. Support the
aluminum bonding block on the inside of the side panel and start
the machine screw in the appropriate pre-drilled and tapped hole
in the bonding block. Repeat the procedure for the other tapped
hole in the bonding block. Don’t forget to place an external tooth
starwasher between the bonding block and the enclosure on each
machine screw. This assures an electrical bond between the
bonding block and the enclosure. Tighten to 10-12 foot pounds. It
may be easiest to insert the negative battery cables to
the bonding block prior to installing it on the side panel.
When the bonding block is installed, drill out two
dimples above the block for the shunt. Insert a 10-32 x
¾” machine screw equipped with an external tooth
starwasher through the drilled-out dimple and into the
holes in the shunt base. Secure the shunt base with
#10 internal tooth starwasher and a 10-32 SS nut. Do
not tighten at this time. Align the five bus bars and
secure one end of them to the bonding block with one
of the 3/8-16 x ¾” bolts equipped with a 3/8” lock
washer. Swing the bars into position over the hole in
the shunt and secure with the other 3/8-16 x ¾” bolts.
Tight to 10-12 foot pounds. Apply decal 2507 (ground
symbol) to the bonding block
#
Qty
Part No.
Description
1
1
3232
decal: “Battery (-)”
2
1
3000
bonding block: DR system
3001
bonding block: SW system
2
4
2213
set screw, 1/4-20 x ½” zinc
3
1
2507
decal: earth ground symbol
4
2
2212
set screw, 5/16-18 x ½” zinc
5
2
2211
set screw, 7/16-14 x ½” , zinc
6
2
3167
set screw, 5/8-11 x 1” zinc plate
