Global garden products 72 Serie Kundendienst Handbuch Seite 94

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DRIVE LEVER ADJUSTMENT
4.5 DRIVE LEVER ADJUSTMENT
( ➤ Hydrostatic drive models)
This adjustment should be made every time work
is done on the drive lever unit or when the pedal
shaft, back axle or the lever return cable are dis-
mantled.
The main indicators that it is not working properly
are:
– the lever does not return when the pedal is
pressed = cable loose,
– the lever does not go the full distance, reducing
performance = cable too tight,
– the lever is stiff = the spring for the clutch
device is badly adjusted,
– he lever is too loose and, under pressure, does
not stay in position = the spring for the clutch
device is badly adjusted or there is oil on the
friction disc,
– the machine has a tendency to move when the
lever is in "neutral" = the connection rod is
incorrectly adjusted.
A) Adjusting the "neutral" position
The pedal position is to be adjusted starting with
the lever (1) of the hydrostatic unit in the "neutral"
position. This position «N» is easily recognised,
since it is held fast by a check ball.
u Remove the right-hand rear wheel [ see 6.1].
u Remove the collector channel [see 5.5]
Keep the lever (1) held in "neutral" and with the
wheels cover closed and firmly fastened, turn the
nuts (2) on the rod (3) until the control lever (4) is
centred on the central slit (5) of the cover.
Check that the drive to the wheels engages only
when the control lever (4) is moved forwards or
backwards.
Check that the probe of the microswitch (6) is in the
"pressed" position on the tip of the cam (8). If it
isn't, loosen the locknuts (7) and move the
microswitch (6) sufficiently so that by moving the
control lever (4) the click of the contact can be
heard passing from the "pressed" position to the
"released" position.
u Reattach the collector channel [see 5.5].
B) Adjusting the release rod of the clutch device
With the brake pedal released, turn the nuts (9) until
© by GLOBAL GARDEN PRODUCTS
WORKSHOP MANUAL
4.5.
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2006
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