Hitachi CM 75EAP Service Manual page 3

Trouble
The engine stalls.
Starts, but
when
accelerating
Poor acceleration;
...
no increase in
revolutions
Fluctuating
revolutions at high
Starts, but
speed
...
Excessive fuel
consumption
Abnormal vibration
Engine is running, but the wheel
hardly moves or is slow.
Blunt cutting
No water supply from water
supplier
Cause
Clogged fuel filter
Insufficient warm-up
Poorly adjusted carburetor ass'y
Clogged cylinder vent passage,
exhaust port and/or carbon-clogged
muffler
Clogged air cleaner
Poorly adjusted carburetor ass'y
Dirt-clogged high-speed fuel line of the
carburetor ass'y
Defective sealing of the packing
Faulty carburetor ass'y
Clogged air cleaner
Poorly adjusted carburetor ass'y
Improper wheel mounting
Loose tightening of handle and other
parts
Bent or broken wheel
Loose belt
High belt tension
Belt disengaged from pulley
Loose belt
Worn-out wheel
Loose connection of joint with faucet
Clogged joint
Hose of 14 mm or less in bore
-2-
Corrective action
Clean or replace.
Warm up.
Adjust.
Clean.
Adjust, clean or replace.
Clean.
Replace.
Adjust, clean or replace.
Clean.
Adjust.
Mount properly.
Check and firmly tighten
the loose parts.
Replace with a new one.
Adjust belt tension.
Firmly engage belt with
pulley.
Adjust belt tension.
Replace with a new one.
Firmly connect both
parts.
Clean.
Replace.