Introduction, Before you begin, Spc a – Nexen SPC 837400 User Manual
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FORM NO. L-20095-U-1112
INTRODUCTION
BEFORE YOU BEGIN
Nexen has introduced a new actuator for SPC Caliper Brake spring-engaged models. The old Three-Port Actuator is
obsolete.
The new actuator is geometrically different and the manual disengagement mechanism operates differently. The redesigned
two-port model has a rubber hose on the exterior of the product used for balancing internal air pressure. The service and
spring ports for this model have been redesigned and simplified.
The mounting procedures on both actuators are identical.
Review the summary of actuator differences below before beginning any installation or maintenance procedures.
Note
The installation and maintenance procedures for each model are located next to each other in this manual. Be
sure to follow the appropriate instructions for each model.
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