d. Batteries (Local Control C-434/GRC).
It may be necessary to remove the "O" ring from the
power cable connector to remove Unit from case.
Loosen the thumbscrew fasteners on the front panel of Unit, and
remove the panel and chassis assembly from the case.
Turn the panel and chassis assembly bottom side up and release the
catch that holds the battery compartment cover in place.
Remove the cover.
Remove two batteries (BA-30).
Place two fresh batteries in the battery compartment (alternate
Replace the battery compartment cover.
Replace Unit in case and secure thumbscrew fasteners.
Replace "O" ring on power cable connector.
Service will be restricted to cleaning, dusting, or washing.
Adequate ventilation should be provided while using TRICHLOROTRIFLUORO-
ETHANE. Prolonged breathing of vapor should be avoided. The solvent should
not be used near heat or open flame; the products of decomposition are toxic
and irritating. Since TRICHLOROTRIFLUOROETHANE dissolves natural oils, pro-
longed contact with skin should be avoided. When necessary, use gloves
which the solvent cannot penetrate. If the solvent is taken internally, consult a
a. Remove grease, fungus and ground-in dirt from your equipment with a
cloth dampened with cleaning solvent.
b. Dust or wash with clean, soft cloth.