Repairing Motor And Replacing Bearings; Inspecting Vibrator - Martin M3910 Operator's Manual

Repairing motor
and replacing
bearings
Inspecting
vibrator
Martin Engineering M3910-04/19
Do not attempt to repair vibrator motor or replace bearings
yourself. If you attempt to do so during the warranty period,
the warranty may be void.
If vibrator motor needs repair or if bearings need to be replaced, call Martin
Engineering at 800-544-2947 for instructions.
At least quarterly, inspect vibrator, cable, and connections as follows:
Before inspecting vibrator, turn off and lockout / tagout /
blockout / testout energy source to vibrator.
1. Turn off and lockout / tagout / blockout / testout energy source to vibrator
according to ANSI standards (see "References").
2. Inspect weight covers for cracks and check cap screws for tightness.
3. Inspect cable for damage including cuts and abrasions. Replace if
damaged.
4. Inspect ground connection. Make sure ground connection to motor
enclosure does not exceed 0.1 ohm. Ensure screw on ground terminal is
tightened to proper torque (see Table II).
5. Make sure all nuts on connections on terminal block are tightened to
proper torque. Do not over tighten (see Table II).
23
CAUTION
!
WARNING
!
®
Martin Electric Vibrators