Operating instructions

TM 11574A-OI
3-33
(18) Controller
(a) Handling Controller. To safely handle the controller, perform the following steps:
CAUTION
Do not remove wire harnesses from controller unless you are grounded to the unit frame
with a static safe wrist strap.
CAUTION
Unplug all controller connectors before performing arc welding on any part of the
container.
NOTE
The guidelines and cautions provided herein should be followed when handling the
Controller/DataCORDER module. These precautions and procedures should be
implemented when replacing the module, when doing any arc welding on the unit, or
when service to the refrigeration unit requires handling and removal of the controller.
1. Controller Software 3. Controller
Programming Port 4. Test Points
2. Mounting Screw
Figure 3-14. Controller Section of the Control Box.
1
Ground yourself by touching metal parts before touching the controller.
2
Disconnect and secure power to the unit.
3
Carefully remove the controller. Do not touch any of the electrical connections if
possible. Place the module on the static mat.