![background image](http://html.mh-extra.com/html/hitachi/cm-75eap/cm-75eap_handling-instructions-manual_140827013.webp)
English
13
Maintenance schedule
Daily maintenance
○
Clean the exterior of the machine.
○
Check that the nut on the arm cover is su
ffi
ciently tightened.
○
Check that the bolts for the cut-o
ff
wheel are su
ffi
ciently
tightened.
○
Check that the cut-o
ff
wheel does not rotate when the
engine is idling
○
Clean the air
fi
lter.
Weekly maintenance
○
Check the recoil starter, especially rope.
○
Clean the exterior of the spark plug.
○
Remove the spark plug and check the electrode gap.
Adjust it to 0.6 mm or change the spark plug.
○
Check that the air intake at the recoil starter is not clogged.
TROUBLESHOOTING
Condition
Probable Cause
Remedy
Engine does not start
No fuel or low fuel
Supply fuel
Fuel is not in the carburetor
Supply fuel and push priming pump a
few times.
Old fuel
Supply new fuel
Spark plug is wet
1. Remove spark plug and dry it
2. Pull starter and dry the fuel inside
the engine
The fuel pipe is bent or detached
Consult a Hitachi Authorized Service
Center
Carburetor failure
Consult a Hitachi Authorized Service
Center
Spark plug failure
Replace spark plug or correct the gap
Electrical system failure
Consult a Hitachi Authorized Service
Center
Engine starts but immediately stalls
No fuel or low fuel
Supply fuel
Fuel is not in the carburetor
Supply fuel and push priming pump a
few times.
The choke is closed
Push choke lever securely
Carburetor failure
Consult a Hitachi Authorized Service
Center
Spark plug failure
Replace spark plug or correct the gap
Clogged air
fi
lter
Clean the air
fi
lter
Abnormal vibration
Faulty mounting of the cut-o
ff
wheel
Please refer to “Assembly of cut-o
ff
wheel”
Deformation of the cut-o
ff
wheel
Replace the cut-o
ff
wheel
Anti-vibration system failure
Consult a Hitachi Authorized Service
Center
Engine starts, but the cut-o
ff
wheel
does not rotate
Belt is loose
Please refer to “Adjustment of belt”
Belt is too tight
Belt is out of pulleys
Please refer to “Replacing of belt”
Engine does not stop
Electrical system failure
Consult a Hitachi Authorized Service
Center
Monthly maintenance
○
Rinse the fuel tank with gasoline, and clean fuel
fi
lter.
○
Clean the exterior of the carburetor and the space
around it.
Quarterly maintenance
○
Clean the cooling
fi
ns on the cylinder.
○
Clean the fan and the space around it.
○
Clean the carbon of mu
ffl
er.
CAUTION
Cleaning of cylinder
fi
ns, fan and mu
ffl
er shall be done
by Hitachi Authorized Service Centers.
0000Book̲CM75EAP.indb 13
0000Book̲CM75EAP.indb 13
2014/07/22 12:31:47
2014/07/22 12:31:47