Dvorak SPIDER MINI II, Руководство по обслуживанию

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7 / 102 SM-8 Ev3/08072015
starter and ignition.
Neutral light is illuminated.
Starter relay works correctly.
Engine brake is released Disconnected cable between fuse
box and starter Check cables and connectors
Defective switch of the engine
brake (under engine cover) Check voltage before and behind
the engine brake switch. You
should read 12 V when start button
is pressed.
Defective engine starter Replace the engine starter
Mower cannot be started.
Starter freely turns the engine. Closed fuel cock or lack of fuel in
the fuel tank Check the fuel cock and refuel
Clogged fuel filter Change the fuel filter.
Low quality fuel Change fuel
Disconnected or defective spark
plug Check the spark plug and replace if
necessary
Broken ignition cable Check the cable
Defective switch of the engine
brake Change the switch.
Dirty air filter Clean or change the air filter and
rough air filter
Clogged and dirty carburettor Clean the carburettor
Blocked or non-functional
automatic engine choke. Check the choke line, replace if
necessary.
Clogged engine exhaust. Clean
Mower cannot be started.
Starter turns the engine with
difficulty. Blocked mowing blade Disengage blade clutch and select
maximum height of cut
Empty battery Check battery voltage and recharge
or replace battery if necessary.
Lack of engine oil Check and add engine oil
Worn starter pinion Replace
Defective started Replace
Blocked drive belt Clean the belt space and make sure
it turns freely
Blocked hydraulic pump.
(possible repair should only be
performed by authorized service) After releasing drive belt check if
the pump pulley freely turns.
Blocked alternator After releasing drive belt check if
the alternator freely turns. Clean
the space around the alternator.
Drive servo lever does not react.
Connection between RC and CU is
OK. Mower can be started. Loose lever between the
servomotor and the hydraulic pump Check the tightness of nuts and
bolts of the lever mechanism
Mower drive does not work or is
insufficient Open pump By-pass Close the pump By-pass
Worn, broken or loose drive belt Check the drive belt
Lack of oil in hydraulic system Add oil in authorized service
Worn mechanical elements of the
hydraulic circuit Change in authorized service
Overheated hydraulic oil Let the mower cool down and clean
the space around the hydraulic
pump for better cooling
Mowing blade clutch slips Dirty functional surfaces of clutch Clean
Clutch worn out excessively Replace worn components
Clutch damaged by hitting a firm
obstacle Check the blade hub and replace if
necessary.
Clutch does not stop the blade Dirty functional surfaces of clutch. Clean
Block clutch disengagement
mechanism Check and clean.
Clutch worn out excessively Replace worn components
Clutch makes noise Dirty functional surfaces of clutch. Clean
Clutch loose on the crankshaft or
loose blade. Tighten and glue fastening bolts of
clutch and blade