jcb G20 User Manual

Technical Data
Fluids, Lubricants and Capacities
144 9831/0650-3 144
Fluids, Lubricants and Capacities
General
The generating set engine oil is pre-filled in factory. However it is important to check the level of oil in the engine
before any starting can take place, and also as part of a regular maintenance schedule.
New engines do not require a running-in period. The engine/machine should be used in a normal work cycle
immediately, glazing of the piston cylinder bores, resulting in excessive oil consumption, could occur if the
engine is gently run-in. Under no circumstances should the engine be allowed to idle for extended periods;
(e.g. warming up without load).
For vehicle applications a minimum API CF-4 grade oil must be used. Superior grade oils may be more
appropriate for heavy duty applications (such as sustained high loads and operation at elevated temperatures).
Important: Operation of the engine with some types of fuel requires use of superior grade oil.
For generator set applications a minimum API CI-4 grade oil must be used. Superior grade oils may be more
appropriate for heavy duty applications (such as sustained high loads and operation at elevated temperatures).
The choice of lubricant viscosity should be made based on the lowest ambient temperature at which the
machine will be started and the maximum ambient temperature at which it will operate.
The following table provides guidance as to the temperature range that can be accommodated by standard oil
viscosities and can be used to select an appropriate grade.
Important: When selecting the oil viscosity grade make sure the oil conforms with or exceeds the recommended
specification.
Table 77.
Oil Viscosity
10W-40SAE
5-W40
Recommended Oils
Table 78.
Engine Oil Specification
API CI - 4, CH - 4, CG - 4
ACEA E4
(1)
ACEA E5
(2)
JCB Extreme Performance
ACEA E7
(3)
(1) High performance (Euro 1 - 2 - 3 Engines) heavy duty
(2) High performance (Euro 1 - 2 Engines) heavy duty
(3) High power over long distances (Euro 4 - 5 engines)
Choose the grade of oil to suit the temperature range as detailed.
Engine Oil Capacity
Table 79.
Item Capacity Litres (UK Gal)
Maximum 11 (2.9)Engine
Minimum 8.7 (2.3)
(1) High performance (Euro 1 - 2 - 3 Engines) heavy duty
(2) High performance (Euro 1 - 2 Engines) heavy duty
(3) High power over long distances (Euro 4 - 5 engines)
Choose the grade of oil to suit the temperature range as detailed.

jcb G20 Specifications

General

Brand	jcb
Model	G20
Category	Portable Generator
Language	English