DERRICK EX, Maintenance & Operation Manual

Page: 9 / 38

EX, SGX VIBRATOR MOTORS
01 May 09 3
STORAGE
If a spare motor is to be placed in storage, the instructions in the following paragraphs must be
observed to protect the stored motor and maintain the warranty.
New Motors
New spare vibrator motors should be stored in a clean, dry (50 percent relative humidity or less),
warm location. The storage location should not undergo severe daily temperature changes.
Used Motors
Before storing a motor that has been in service, run the unit for approximately one hour to ensure
complete heating and to dissipate any internal moisture. At the end of the run, shut down the
motor and allow it to cool. Follow all applicable lock out and tag out rules when removing the
motor.
While motor is in storage, periodically check the integrity of the winding insulation using a
megohmmeter. Maintain a continuous record of megohmmeter readings, and immediately
investigate any significant decrease in insulation resistance.
OPERATING ENVIRONMENT
Derrick vibrator motors are designed to operate in ambient temperatures slightly higher than
104°F (40°C). If higher temperatures are anticipated, please contact the Derrick Technical Service
Department for assistance.
DO NOT install hoods or enclosures that may cause inadequate
ventilation, which could reduce vibrator life.
REPLACEMENT PARTS
The cross-sectional view and parts list below include replacement parts that are available for the
Derrick EX and SGX vibrator motors. This information should be used to identify and order
replacement or spare parts for the motor. To simplify parts location, the parts list contains
separate part number columns for the EX and SGX motors.