8.2 Fuels and lubricants
8.2.1 Engine oil
8.2.1.1
Oil quality
The following engine oil specifications are permitted:
n
Engine oils for four-stroke engines acc. to API-classification SJ
or higher
Avoid mixing of engine oils.
8.2.1.2
Oil viscosity
Since engine oil changes its viscosity with the temperature, the
ambient temperature at the operating location of the engine is of
utmost importance when choosing the viscosity class (SAE-class).
The temperature data of the SAE-class always refers to fresh oils.
In travel operation engine oil ages because of soot and fuel resi-
dues. This adversely affects the properties of the engine oil, espe-
cially under low ambient temperatures.
SAE 10W-30 is recommended for general use.
You may alternatively use 15W-40 (except under low tempera-
tures).
8.2.1.3
Oil change intervals
Oil change interval: semi-annually or every 100 operating hours.
8.2.2 Fuel
8.2.2.1
Fuel quality
Use unleaded gasoline with a research octane number of 91 or
higher (or octane number 86 or higher).
Use unleaded standard grade gasoline with maximum 10 percent
by volume of ethanol (E10) or maximum 5 percent by volume of
methanol.
Methanol must also contain co-solvents and corrosion inhibitors.
Do not use any fuel with a higher ethanol or methanol content.
The use of fuels with a higher ethanol or methanol content will
cause starting and/or power problems or even cause damage in
the fuel system.
Fig. 43
Maintenance – Fuels and lubricants
DR7X
65
Summary of Contents for DR7X
Page 2: ...2...
Page 6: ...Table of contents DR7X 6...
Page 7: ...1 Introduction Introduction DR7X 7...
Page 11: ...2 Technical data Technical data DR7X 11...
Page 15: ...3 Concerning your safety Concerning your safety DR7X 15...
Page 38: ...Concerning your safety Signage DR7X 38...
Page 39: ...4 Indicators and control elements Indicators and control elements DR7X 39...
Page 41: ...5 Checks prior to start up Checks prior to start up DR7X 41...
Page 47: ...6 Operation Operation DR7X 47...
Page 58: ...Operation Operating hour meter engine rpm meter DR7X 58...
Page 59: ...7 Loading transporting the machine Loading transporting the machine DR7X 59...
Page 63: ...8 Maintenance Maintenance DR7X 63...
Page 98: ...Maintenance As required DR7X 98...
Page 99: ...9 Setting up refitting Setting up refitting DR7X 99...
Page 101: ...10 Troubleshooting Troubleshooting DR7X 101...
Page 108: ...Troubleshooting What to do if the engine has flooded DR7X 108...
Page 109: ...11 Disposal Disposal DR7X 109...
Page 111: ...12 List of special tools List of special tools DR7X 111...
Page 112: ...16 mm spark plug spanner Fig 16 mm spark plug spanner example List of special tools DR7X 112...
Page 113: ......
Page 114: ......
