The Graco GLC 2200 is a compact in-cab controller for automatic grease lubrication systems on off-road equipment and in-plant machinery. It manages the lubrication pump — typically a Graco Dyna-Star electric pump — and monitors system health through pressure or cycle feedback, low-level sensing, and configurable alarm outputs. The controller is designed for straightforward installation: external mounting tabs mean the enclosure stays sealed during fitting, and a color-coded wiring harness with flying leads connects to power, pump, pressure/cycle switch, and optional remote alarm.

What control modes does the GLC 2200 offer?

Three modes cover different lubrication strategies. Pressure Control mode runs the pump until a pressure switch confirms the grease line has reached target pressure, then stops. Cycle Control mode counts pump cycles via a cycle switch — useful for progressive divider valve systems where each cycle delivers a fixed grease volume. Time Control mode runs the pump for a configurable duration, suited to simple single-line systems or applications where pressure or cycle feedback is unavailable. All modes support configurable on and off intervals.

How does the GLC 2200 alert operators to lubrication problems?

The controller provides both visual and audible in-cab alarms. If the pump fails to reach pressure within the configured timeout, a low-level switch triggers, or a cycle count doesn't register, the GLC 2200 activates a buzzer and flashes the corresponding LED on the front panel. A dedicated alarm output terminal allows connection of a remote beacon or horn for maintenance personnel who are not in the cab. A manual run button lets an operator trigger a single lube cycle for system testing without entering the programming menu. Settings are protected by a PIN code lock-out to prevent unauthorized changes.