Section 1 Specifications; Introduction; Controller Specifications; Engine Service - Kohler Power Systems 8RESV Service Manual

1.1 Introduction

The specification sheets for each generator set provide
specific generator and engine information. Refer to the
generator set specification sheet for ratings and other
data not supplied in this manual. Consult the generator
set installation manual, engine operation manual, and
engine service manual for additional specifications.
Consult the generator set nameplate for specific
generator set ratings.

1.2 Controller Specifications

Model 8RESV, 10RESV, and 12RESV generator sets
are equipped with the RDC2 controller. Model 8RESVL,
10RESVL, and 12RESVL generator sets are equipped
with the DC2 controller. For a specific description of the
controller, see the generator set operation manual.
Environmental Specification
Operating temperature
Storage temperature
Humidity
Power requirements:
Voltage
Current (standby state)

1.3 Engine Service

Model 8RESV(L) Generator sets covered in this manual
are equipped with four-cycle, single cylinder, air-cooled
Kohler engines.
Models 10RESV(L) and 12RESV(L) Generator sets
covered in this manual are equipped with four-cycle,
twin cylinder, air-cooled Kohler engines.
For engine service information and specifications not
covered in this manual, see the engine service manual.
See the List of Related Materials in the Introduction
section.
TP-6881 7/15
All Models
--30_ to 70_C
--40_ to 85_C
0--95% condensing
12 VDC
250 mA @ 12 VDC

Section 1 Specifications

1.4 Engine Specifications

Engine Specification
Manufacturer
Model
Cycle
Number of cylinders
Compression ratio
Displacement,
cc (cu. in.)
Rated power, propane
fuel, kW (HP)
Rated power, natural
gas, kW (HP)
Rpm, 60 Hz
Bore x stroke, mm (in.)
Valve material
Cylinder block material
Cylinder head material
Piston rings
Crankshaft material
Main bearings: number,
type
Lubrication system
Oil capacity (w/filter),
L (qt.)
Oil pressure, kPa (psi)
Fuel system
Minimum fuel supply
pressure, kPa (in. H O)
2
Battery voltage
Battery ground
Spark plug gap, mm (in.)
Ignition system
Starter motor
Cooling system
8RESV(L) 10/12RESV(L)
Kohler
SV620 KT725
4 4
1 2
8.5:1 9.0:1
597 (36.4) 725 (44)
10RESV =
10 (13.4),
8 (10.7)
12RESV =
12 (16.1)
10RESV =
9 (12.1),
7 (9.4)
12RESV =
11 (14.8)
3600
94 x 86 83 x 67
(3.7 x 3.44) (3.3 x 2.6)
Steel
Aluminum
Aluminum
2 compression/ 1 oil
Heat-treated ductile iron
2, parent material
Full pressure
1.5 (1.6) 1.9 (2.0)
172--241 (25--35)
LPG or natural gas
LPG = 1.7--2.7 (7--11),
NG = 0.87--2.7 (3.5--11)
12 VDC
Negative
0.508 (0.020)
Capacitor discharge
Electric, solenoid shift
Air-cooled
Section 1 Specifications 11