TM 10-3930-659-20 6-29. ENGINE HIGH TEMPERATURE SWITCH REPLACEMENT. b. INSTALLATION 1. Install engine high temperature switch (1) on engine (3). 2. Connect engine wiring harness connector (2) to engine high temperature switch (1). FOLLOW - ON TASKS: • Fill cooling system with antifreeze (see paragraph 5-38). • Close right engine upper sideshield (see TM 10-3930-659-10). • Install conveyorized fork attachments to side of forklift truck (see paragraph 17-13). TA707810 6-124