Komatsu 830E Shop Manual page 266

4. Turn the oscillator frequency to maximum. Verify that the RP contactors pick up in the sequence
listed, as the oscillator frequency is slowly decreased.
a. 3 Step Extended Range Retarding - RP3, RP4, and RP5 contactors.
b. 7 Step Extended Range Retarding - RP3, RP4, RP5, RP6, RP7, RP8, and RP9 contactors.
5. Release retard pedal and place selector switch in NEUTRAL position.
6. Disconnect oscillator from 714, 714A wires.
7. Remove jumpers from 77, 77A, 714, and 714A.
8. Reconnect external 77 and 714 wires.
9. Reconnect circuit 73LS if truck has two speed overpseed.
Return to Main Menu
1. This completes the speed event checks. Be certain all wiring has been restored to original con-
dition.
2. Leave the PTU RETARD STATE LOGIC SCREEN screen by moving cursor to select "Exit" on
the menu and press [ENTER] key.
3. Select "EXIT" as necessary until returned to GE STATEX III PTU MAIN MENU.
4. Move cursor to select "Exit" on the menu and press [ENTER] key.
5. At "QUIT PTU?" menu screen prompt , press [Y] key (or any key except [N]) to exit back to the
GE OHV STATEX III MENU.
6. Turn control power Off.
E3-36 Statex III Electrical Checkout Procedure 2/02 E03012