EMAK EF 92S/13H Manual Del Usuario página 52

Problem
When the mowing
mechanism's drive
is turned on, the
belt shows extreme
vibration
The driving belt is
sliding.
The drive belt squeaks.
The drive belt jumps
out during operation
The machine does
not move when the
accelerator is pressed
There is a lot of
vibration while driving
The steering slips or is
loose.
The engine doesn't run
Engine turns but won't
fire
The machine can't be
pushed, or only with
difficulty
There is a whistling
sound while driving
 Check the blades to see if they are uneven or warped, and also check to see if they are
balanced. If they are deformed, replace them.
 Check to see if the belt has burnt surfaces or irregularities that may lead to vibration. Replace
the damaged belt.
 Check to see if the blades are worn or damaged. Replace them, if necessary.
 Check the operation of the electromagnetic connector to see if it turns on properly. If it
malfunctions, have it repaired or replaced by an authorized service facility.
 Check the inner surface of the pulley on the engine. If it is rough or has cracks, the pulley
should be replaced.
 Check to see that no grass is lodged under the mowing mechanism. If there is any, remove it.
 Check to make sure there is no defect in the engine mount. If necessary, tighten or replace
the bolts.
 Check the belt tension (
 Check the drive belt tension (
 Check to see if the belt is damaged or worn.
 Check to see if the drive coupling mechanism is blocked by a foreign object. If it is, remove
the object.
 Check to see if the engine or transmission pulley is damaged. If necessary, replace it.
 Check the drive belt tension (
belt tension. If the brake operation is not in order, have an authorized service centre adjust it.
 Check the drive belt tension (
 Check the belt guide. If necessary, adjust it.
 Check for damaged pulleys. Replace them, if necessary.
 Check the space between the drive coupling mechanism. If there are deviations, the coupling
pulley support may be bent. Replace it if necessary.
 Check the drive belt tension (
 Check the engine and transmission pulleys for sheared or cut grooves. Replace if necessary.
 Check for damaged or deformed pulleys. Replace them, if necessary.
 Check to see if the drive belt has burnt areas or other irregularities. Replace it, if necessary.
 Check the drive belt tension (
 Check the balance of the mowing blades. Replace or rebalance them, if necessary.
 Check to see if there is too much play between the segment and the pinion. If there is, adjust
the toothed segment. Check for wear to the ball joints. If necessary, replace the joints.
 Check to see if there is fuel in the tank.
 Check to see if the designated engine start-up procedure has been followed (
 Check the fuse. If necessary, replace it.
 Check to see that the battery's pole voltage is 12 V. On a new machine, make sure the battery
has been activated and charged. On new machines, remove the spark plugs and make sure
that the oil hasn't accumulated in the cylinder due to improper handling.
 Check to see that all wire connectors are in order and that the electrical system's switches are
operational.
 Test the engine exactly according to its manufacturer's user manual. Have the machine's
electrical system tested at a professional workshop.
 Check to see if the designated engine start-up procedure has been followed (
to see if the fuel in the tank is clean.
 Check to see if the fuel filter is clogged.
 Check to see if the fuel cap is open (only on BS15.5 engines).
 Make sure that the fuel lever is in the "STARTER" position.
 Test the engine exactly according to its manufacturer's user manual. Have the machine's
wiring and switches tested at a professional workshop.
 Check to make sure the bypass lever is in the "0" position.
 Check the belts, and the guide and tensioning pulleys. If the problems persist, seek out an
authorized service centre.
Solution
6.3.8). If necessary, adjust the tension.
6.3.11). If necessary, adjust the tension.
6.3.11) and the brake operation. If necessary, adjust the
6.3.11). If necessary, adjust the tension.
6.3.11). If necessary, adjust the tension.
6.3.11). If necessary, adjust the tension.
52
5.2)
5.2). Check