Cord Grip Installation - Martin M3910 Operator's Manual

Frame Size Size
00 1/2 NPT
10 1/2 NPT
20 1/2 NPT
30–50 1/2 NPT
90–95 3/4 NPT
97-105 1 NPT
Model Size
MB36-3000 1/2 NPT
Distance Between Flats
Martin Engineering M3910-04/19
See Figure 5. The compression nut must be tightened to a
position that will provide proper strain relief for the cord. If
the compression nut is not tight enough, the electrical
connections may be stressed. If the compression nut is too
tight, the cord may be damaged. When using a factory cord,
tighten the compression nut to a position that meets the
specified "Distance Between Flats."
Table III. Cord Grip Specifications
Suitable Cord
Part No. Diameter Range
in. (mm)
194995 .17–.45 (4–12)
194851 .17–.45 (4–12)
194851 .17–.45 (4–12)
823002 .56–.63 (14–16)
823001 .51–.71 (13–18)
820003 .70–.85 (18–22)
Suitable Cord
Part No. Diameter Range
in. (mm)
194856 .38–.50 (10–13)
Compression Nut
Figure 5. Cord Grip Installation
When wiring vibrator, leave slack in electrical cable so that
cable does not become taut during vibration cycle and cause
stress on wire connections. On applications where moisture is
present, leave enough slack in power cable to prevent moisture
from running down cable into vibrator.
3. Wire vibrator according to appropriate wiring diagram inside terminal
box or see Figure 6 or 7. Use closed loop wire connectors only.
IMPORTANT
Cord Provided by Factory
Nominal
Size
Diameter, in.
18/4 0.402
18/4 0.402
18/4 0.402
14/4 0.575
10/4 0.705
8/4 0.807
Cord Provided by Factory
Size
Diameter, in.
16/4
Distance Between Flats
IMPORTANT
9
Distance Between
Flats, in.
1/8 to 3/16
1/8 to 3/16
1/8 to 3/16
1/8 to 3/16
1/16 to 1/8
1/8 to 3/16
Nominal Distance Between
Flats, in.
0.425 1/8 to 3/16
Compression Nut
®
Martin Electric Vibrators