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No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any means without the written permission of RCT. ■ Information provided in this manual is intended to be accurate and reliable. However, RCT assumes no responsibility for its use or infringements upon the rights of third parties that may result from its use. ■...
Contents GENERAL SAFETY WARNINGS PRODUCT OVERVIEW FEATURES AND FUNCTIONS OPERATION AND USE CONTROLLER STATUS INDICATOR OPERATION INSTALLATION GUIDE WIRING CONNECTIONS EXTERNAL WIRING DIAGRAM (501d) CALIBRATION SERVICE INFORMATION SERVICE SCHEDULE SERVICE PROCEDURE PARTS LIST 12726 OVERCRANK CONTROLLER LOW VOLTAGE KIT (12 V) 12725 OVERCRANK CONTROLLER KIT (24 V) TECHNICAL SPECIFICATIONS COMPLIANCE AND STANDARDS...
Ensure electrical connections are made as per RCT’s recommendations. Test circuits prior to connecting power to any component. ■ The equipment contains no user serviceable parts inside. Return the unit to RCT for repairs. ■ Retain product and installation instructions for future use.
PRODUCT OVERVIEW ® The Muirhead Overcrank Protection controller, part number 11966, is designed to be installed onto machines to protect the starter motor from over-cranking. The overcrank protection controller will stop the engine starter motor being cranked for an excessive amount of time and provides a cooling down period between long cranking.
OPERATION AND USE The overcrank protection controller will allow the operator to crank the vehicle for a maximum of 30 seconds (adjustable) after which the output is turned off. If the crank time exceeds 10 seconds (adjustable), there is a lockout period of 60 seconds (adjustable) before it can be cranked again.
INSTALLATION GUIDE WARNING! A RELAY IS REQUIRED IN THIS SYSTEM AS A FAIL TO SAFE CIRCUIT. FAILURE TO INCLUDE A RELAY IN THE CIRCUIT MAY RESULT IN DAMAGE TO THE ENGINE AND/OR COMPONENTS. 1. Install the control unit, relay and bypass switch in a suitable location, preferably in the cabin. 2.
* Note: The units’ column indicates the value that the setting will increase by with each increment. **Note: These parameters can be changed through programming; however, this will require the use of the programmable controller utility available from RCT. SERVICE INFORMATION SERVICE SCHEDULE The manufacturer recommends that the following service procedure should be performed at each machine’s...
Programming/adjustment Refer to Calibration section COMPLIANCE AND STANDARDS RCT has an obligation as a manufacturer to comply with the regulations as required by the relevant regulatory bodies, depending on the market and location. This product currently complies with the following: ACMA ■...