Graco 297280 Reversing Lever
The Graco 297280 Reversing Lever is used in the pump reversing mechanism of older Graco Reactor proportioners. The lever works with the reversing switch assembly to signal pump direction changes during operation.
A worn or damaged reversing lever may cause erratic pump cycling, failure to reverse direction, pressure imbalance or improper pump operation.
Used On
Graco 117484 Thermocouple for Heater Block
The Graco 117484 Thermocouple is used to monitor heater block temperature on Graco Reactor proportioners. Accurate temperature feedback is critical for maintaining proper material temperature and system performance during spray foam and polyurea applications.
A failed thermocouple may cause temperature faults, inaccurate heater readings, heater shutdowns or difficulty maintaining set temperature.
