Table of Contents
Page
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . .
i
Section 1. Introduction and Specifications
l-l.
l-2.
l-3.
l-4.
l-5.
1-6.
l-7.
1-8.
1-9.
Introduction
............................. l-l
Model 3.5 CM21-RV
...................... l-l
Model 4.5 CM21-RV (single)
.............. l-l
Model 4.5CKM21-RV (twin)
............... 1-I
Model 5.5 CM21-RV
......................
l-l
Model 7 CM21-RV
........................ l-l
Model 7.5 C21-RV
........................
1-2
Oil Specifications
........................ l-4
Fuel Specifications
.......................
l-5
Section 2. Operation
2-1. General.
......................... 2-1
2-2. Prestart Checklist
................... 2-1
2-3.
Operation
........................ 2-l
Section 3. Scheduled Maintenance
Governor
3-1.
General.
......................... 3-1
3-2.
Scheduled Maintenance
............... 3-I
Section 4. Troubleshooting
4-l. General.
........................ .4-l
4-2.
RV Systems Check
.................. 4-1
4-3. Troubleshooting
.................... 4-2
Section 5. Relay Controller
5-l.
5-2.
5-3.
5-4.
5-5.
Description
....................... 5-1
Sequence of Operation
............... 5-l
Fuses
........................... 5-4
REl Diode
....................... 5-5
Relays
.......................... 5-5
Page
Section 6. Generator
6-l. General
..........................
6-1
6-2. Troubleshooting .................... 6-1
6-3. Generator Disassembly ............... 6-l
6-4. Build-up Circuit
.................... 6-7
6-5. Brushes .......................... 6-8
6-6. Slip Rings
........................ 6-9
6-7. Exciter / Voltage Regulator ............ 6-9
6-8. Stator .......................... 6-I 1
6-9. Rotor. ......................... 6-11
6-10. Separate Field Excitation ............. 6-11
6-11. Voltage Sensing Relay ............... 6-12
6-l 2. Generator Reassembly ............... 6-12
Section 7. Choke, Shutdown Control and
7-1.
7-2.
7-3.
7-4.
7-5.
7-6
7-7.
7-8.
7-9.
Choke Testing and Adjustments
(3.5kW,4.5kW). . . . . . . . . . . . . . . . . . . . 7-1
Choke Testing and Adjustments
(4.5 twin, 5.5,7, 7.5kW) . . . . . . . . . . . . . 7-3
Positive Shutdown Control (3.5kW-7kW) . . . . 7-3
Crankcase Breather (3.5kW, 4.5kW) . . . . . . . 7-4
Governor (3.5kW, 4.5kW single). . . . . . . . . . 7-4
Governor Hunting Checks (4.5kW Only) . . . . 7-5
Governor (4.5kW twin). . . . . . . . . . . . . . . . 7-6
Governor (5.5kW, 7kW) . . . . . . . . . . . . . . . 7-6
Governor (7.5kW) . . . . . . . . . . . . . . . . . . . 7-7
Section 8. Wiring Diagrams
Appendix
Radio Frequency Interference Kit.. . . . . . . . . A-l