© STIHL Inc., Virginia Beach, VA     2013 US/STR
confidential
20. Fuel Filter
 Use the 5910 893 880 hook tool to fish the fuel filter out of the 
tank for inspection
 The filter body screen should be clear and in good condition, 
and the element may have oil staining but should not be dark 
or fouled or have any kind of coating on it 
© STIHL Inc., Virginia Beach, VA     2013 US/STR
confidential
Pressure Vacuum Tester
 0000 850 1300 Pump
 With the knurled ring to 
the right the gauge 
indicates pressure
 With the knurled ring to 
the left the gauge 
indicates vacuum