Fault Diagnosis - Beal T50 Handbuch

Fault diagnosis

Possible faults and their rectification
Fault
Wheel drive too weak, does not
function correctly
Drive pulls to one side
Excessive vibration in handlebars
Rattling noises
Unsatisfactory cutting performance
High pitched screeching during use
Lack of engine output
Engine smokes
Engine knocks
Motor will not start
Engine runs a few moment then
stops
Engine does not turn (when starting)
Engine does not switch off
Machine cannot be pushed
Wet drive belt – oily drive belt – belt too loose – belt slipped off/ripped
Uneven tyre pressure
Loose bolts – vibration damper off – vibration damper defect – nominal
engine speed too high
Incorrect adjustment of cuter – carrying pivot not correctly locked into place
– cover not correctly mounted – lack of lubricant on cutter – worn carrying
pivot/bearing/cutter head sleeve – cutter blades loose – bent cutter bar
Cutter worn or blunt – loose cutter blades – cutter head worn – cutter head
guide seized - broken off blades – blades incorrectly sharpened – missing
grass repeller, dirt between blade and beam – cutter brackets worn – basic
setting of cutter bar incorrect – bent cutter bar – drive belt slipping, drive
belt ripped, Bowden cable adjustment incorrect
Cutter bar jammed (foreign object) – Bowden cable adjustment incorrect
Defect sparkplug – cooling fins blocked – incorrect valve setting – incorrect
fuel setting - incorrect nominal engine speed – throttle cable setting incorrect
– speed controller jammed - lack of engine compression – sparkplug cover
not correctly seated – fuel (wrong, too old, too little, water contaminated)
Fuel (wrong, too old, too little, water contaminated) – sparkplug (defect or
heat value)- wrong engine oil – paper air filter element dirty or oiled – foam
air filter element dirty or dry – cooling fins blocked – check oil level (too
much oil)
Wrong ignition setting – fuel (wrong, too old, too little, water contaminated)
– sparkplug (defect or wrong heat value) – dirty air filter – blocked cooling
fins – silencer defect – fuel setting incorrect – sparkplug cap incorrectly
seated
Fuel filter blocked – sparkplug (defect or wrong) – fuel (wrong, too old, too
little, water contaminated) – sparkplug cap incorrectly seated – Bowden
adjustment incorrect (choke)- choke not open (cold engine) – lack of engine
compression – incorrect valve adjustment - fuel tap (when fitted) off – (with
oil warning system) oil level too low
Not enough fuel – fuel tap (when fitted) off – air hole in fuel tank cap blocked
(with oil warning system) oil level too low
Oil (too much, too little, contaminated) – fan wheel blocked by foreign body
Incorrect adjustment of throttle linkage – engine switch defect
Bowden cable adjustment incorrect, drive lever is depressed
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Cause