Global Garden Products Lawn Mower 102 - 122 102 - 122 Hydro Instructions Manual

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© by GLOBAL GARDEN PRODUCTS
102 - 122
7.4.1
TERMINAL BOARD SUPPLY CHECK





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7.4 TERMINAL BOARD SUPPLY CHECK
This check is made with the tester operating as a
Voltmeter (Volts DC 0 ÷ 20), with the black ferrule on
terminal 17 and the red one on terminal 18 of the
CN4 connector 
(1) of the wiring.
–The key in the «ON» position
The reading shows the battery voltage, which
should never go below 11 Volts.
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7.4a.0
TERMINAL BOARD SUPPLY CHECK





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WORKSHOP MANUAL
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2006to  ••••
7.4a TERMINAL BOARD SUPPLY CHECK
This check is made with the tester operating as a
Voltmeter (Volts DC 0 ÷ 20), with the black ferrule on
terminal 1 and the red one on terminal 11of the
connector 
(1) of the wiring.
–The key in the «ON» position
The reading shows the battery voltage, which
should never go below 11 Volts.
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102 - 122
7.5.1- CARBURETTOR SOLENOID VALVE
OPERATION CHECK




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WORKSHOP MANUAL
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2006to  ••••
7.5 CARBURETTOR SOLENOID VALVE
OPERATION CHECK (where fitted)
All the connectors must be connected to make this
check.
When the key is set to «ON», a click must be heard
from the carburettor solenoid valve coil.
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7.5a.0- CARBURETTOR SOLENOID VALVE
OPERATION CHECK




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WORKSHOP MANUAL
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7.5a CARBURETTOR SOLENOID VALVE
OPERATION CHECK (where fitted)
Connector CN1 must be connected to make this
check.
When the key is set to «ON», a click must be heard
from the carburettor solenoid valve coil.
.
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							TC•
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102 - 122
7.6.2
STARTER RELAY OPERATION CHECK





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WORKSHOP MANUAL
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7.6 STARTER RELAY OPERATION CHECK
WARNING! – Remove the cap of the sparking
plug (or plugs), since the safety systems that
normally prevent accidental starting of the
engine are cut out when the checking procedure
is carried out.
To do this requires:
–engaging the parking brake;
–disengaging the blade;
–connectors CN1 and CN2 disconnected 
(1);
–the key in the «ON» position.
In making a bridge between the terminals 11 (CN3)
and 18 (CN4) of the wiring connectors 
(1), the click
of the relay bobbin should be heard and the starter
motor should come into action.
➤Only with B&S and Tecumseh engines:
If the bobbin clicks but the starter does not start,
make a bridge 
(2)with a large section cable (5
mm2) between the power contacts of the relay.
If the starter comes into operation, look for the
fault within the relay or replace it. Otherwise,
check the starter together with its wiring.
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7.6a.0
STARTER RELAY OPERATION CHECK





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WORKSHOP MANUAL
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2006to  ••••
7.6a STARTER RELAY OPERATION CHECK
WARNING! – Remove the cap of the sparking
plug (or plugs), since the safety systems that
normally prevent accidental starting of the
engine are cut out when the checking procedure
is carried out.
To do this requires:
–engaging the parking brake;
–disengaging the blade;
–the key in the «ON» position.
Detach connector CN1 and then, when a bridge is
made between terminals 11 and 4 of connector
CN1 of the wiring  
(1), the relay bobbin must be
heard to click and the starter must start.
➤Only with B&S and Tecumseh engines:
If the bobbin clicks but the starter does not start,
make a bridge 
(2)with a large section cable (5
mm2) between the power contacts of the relay.
If the starter comes into operation, look for the
fault within the relay or replace it. Otherwise,
check the starter together with its wiring.
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							TC•
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© by GLOBAL GARDEN PRODUCTS
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7.7.1- ELECTROMAGNETIC CLUTCH 
OPERATION  CHECK




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WORKSHOP MANUAL
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7.7 ELECTROMAGNETIC CLUTCH OPERATION
CHECK 
( ➤In models with electromagnetic
engagement)
To make this test it is necessary to have:
–Connectors CN1 and CN2 disconnected 
(1)
–The key in the «ON» position
When bridging between terminals 10 (CN3) and 18
(CN4) of the cabling connectors
(1), a click must be
heard from the moving part of the clutch, due to
excitation of the electric winding.
If this does not occur, check the wiring and the
operation of the control push-button [see 7.3] and
ensure that the card is operating correctly [see 7.8].
The clutch must be replaced if engagement does
not take place after these checks.
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7.7a.0- ELECTROMAGNETIC CLUTCH 
OPERATION  CHECK




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WORKSHOP MANUAL
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7.7a ELECTROMAGNETIC CLUTCH OPERATION
CHECK 
( ➤In models with electromagnetic
engagement)
WARNING! – This check must be made with the
engine off.
Disconnect connector CN1 and bridge terminals 2
and 11 of cabling connector CN1 
(1). 
With the key set to «ON», when the switch is oper-
ated a click must be heard from the moving part of
the clutch, due to excitation of the electric wiring.
If this is not so, check the operation of the cabling
and control switch [see 7.3].
The clutch must be replaced if engagement does
not take place after these checks.
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7.8.2
ELECTRONIC CARD OPERATION CHECK





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WORKSHOP MANUAL
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7.8 ELECTRONIC CARD OPERATION CHECK
A) Card power supply
To make this test it is necessary to have:
–The key in the «ON» position
–Connectors CN1 and CN2 disconnected 
(1)
In this situation all the indicator lights (excluding the
petrol and oil ones – if active) and the battery indi-
cator, if in good charge conditions, should light up.
B) Pilot lamps  switch-on test
Making a bridge between the following terminals of
connectors CN1and CN2 
of the card (2)should
produce the following effects:
Gr.-catcher warning light = Terminals 6 - 7  off
Seat warning light = Terminals 6 - 3  off
Brake warning light = Terminals 6 - 2  off
Blades warning light = Terminals 6 - 1  off
Fuel warning light = Terminals 6 - 4  on
“Neutral” warning light =  Earth - 8 off
C) Self-resetting protection operation check
For this test, put everything in the same situation as
in point «
A».
On connecting terminal 6 of connector CN2 
of the
card (4)
to the frame earth (3), everything should
switch off and the warning buzzer should start
operating.
NOTE
During this test, the self-setting protection reaches
very high temperatures (around 180 °C) which are to
be considered normal. Similarly, there might be
some smoke inside the transparent box which is
due to the overheating of the powder inside.
WARNING! Do not touch this component of the
card until it has cooled down. 
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							102 - 122
7.9.2
RECHARGE CIRCUIT CHECK





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WORKSHOP MANUAL
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7.9 RECHARGE CIRCUIT CHECK
The job of the voltage regulator is to supply a flow of current to the battery at a constant voltage of about 14 -
15 Volts, cutting in every time that the output voltage from the generator exceeds this threshold.
A faulty regulator may recharge the battery insufficiently (therefore needing frequent recharging) or, otherwise,
may supply overloading that causes the self-resetting protection to cut in.
Before checking the recharge circuit, make sure that:
– all connections are correct;
– the earth connections are firmly connected, especially the earth connection to the regulator;
– the battery is charged and not sulphated [see 7.10];
– the charger fuse is not blown.
A) Checking the lower charging limit
Start the engine and keep running at minimum with the headlights on. 
With the voltmeter tester, measure the voltage at the battery terminals. If the value does not rise but tends to
fall, even slowly, it means that the regulator is not charging sufficiently and must be replaced.
If the voltmeter shows no value it means that the charger fuse is blown.
➤Only with a Honda engine:check the recharge relay. On moving the key from “OFF” to “ON” and vice
versa, the ticking of the relay contacts should be heard; otherwise it should be replaced.
B) Checking the upper charging limit
Start the engine and take it to maximum speed. With the tester in the voltmeter function, measure the voltage
at the battery terminals. The amount should slowly rise and settle at 14-15 Volts after about 10-15 minutes.
If this value is exceeded to the extent that the engine stops due to the self-resetting protection cutting in (at
approximately 16 Volts) it means that the regulator is charging too much and must be replaced.
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