Fuel System/Fuel System Bleed CTM3274 (01JUL99) 40-68 Saran Liter Engines 060799 PN=313 ADJUST ENGINE SPEED ON MICO IN-LINE INJECTION PUMP NOTE: Before adjusting engine speed, make sure engine has reached its normal operating temperature. -UN-23FEB99 All speeds indicated apply to an engine not under load. The maximum permissible speed variation is ± 50 rpm for slow idle speed and + 50 rpm for fast idle speed. CD30738 Fast idle checking: MICO in-line pump Move pump throttle lever against pump fast idle adjusting screw (A). Check engine speed and compare with specifications. NOTE: Fast idle is settled by the factory then the fast idle adjusting screw (A) is sealed to prevent from tampering.
Fast idle adjustment can only be done by an authorized fuel system agent. Slow idle checking: NOTE: Both the slow idle spring screw (B) and the slow idle speed screw (C) are used to adjust the slow idle speed. Remove the threaded caps to access these adjusting screws. 1. Loosen slow idle spring screw (B) as much as possible. 2. Adjust slow idle speed screw (C) to the specifications minus 20 rpm. 3. Retighten slow idle spring screw (B) until engine slow idle speed specification is obtained. CD,3274,G40,95 -19-04JAN99 40 68