Toro 01088SL Rev F Service Manual Groundsmaster 3500 D Preface Publication

Electrical System Quick Check
Battery Test (Open Circuit Test)
Use a multimeter to measure the voltage between the
battery terminals.
Voltage Measured
Battery Charge Level
Fully charged (100%)
75% charged
12.68
12.45
12.24
12.06
11.89
V (or higher)
Set  multimeter to  the  DC  volts setting.  The  battery
should be  at a  temperature  of 60o  to 100oF  (16o to
V
V
V
V
50% charged
38
oC).Theignitionkeyshouldbeoffandallaccessories
25% charged
turned off. Connect  the positive (+)  meter lead to the
positive battery post and the negative (--) meter lead to
the negative battery post.
0% charged
NOTE:  Thistestprovides arelative  condition ofthebat-
tery. Load testing of  the battery will provide additional
and more accurate information.
Charging System Test
This is a simple test used to determine if a charging sys-
tem is functioning. It will tell you if the charging system
has an output, but not its capacity.
Start the engine and run at high idle (3200 RPM). Allow
the battery to charge for at least 3 minutes. Record the
battery voltage.
Tool required: Digital multimeter set to DC volts.
After running the engine for at least 3 minutes, battery
voltageshouldbeatleast0.50volthigherthaninitialbat-
tery voltage.
Test instructions:  Connect the positive  (+) multimeter
lead to  the positive battery  post and the negative  (--)
multimeter lead to the negative battery post. Keep the
test leads connected to the battery posts and record the
battery voltage.
Example of a charging system that is functioning:
At least 0.50 volt over initial battery voltage.
NOTE:  Upon starting the  engine, the battery  voltage
will drop and then should  increase once the engine is
running.
Initial Battery Voltage
Battery Voltage after 3 Minute Charge
Difference
= 12.30 v
= 12.85 v
= +0.55 v
NOTE:  Depending upon  the condition  of the  battery
charge and battery  temperature, the charging system
voltage will  increase at  different rates  as the  battery
charges.
Glow Plug System Test
This is a fast, simple test that can help to determine the
integrity and operation of  the Groundsmaster 3500--D
glow plug system. The test should be run anytime hard
starting (cold engine) is encountered on a diesel engine
equipped with a glow plug system.
Set the multimeter to the correct scale. With the ignition
switch in the OFF position,  place the ammeter pickup
around the main glow plug power supply wire and read
themeterpriortoactivatingtheglowplugsystem.Adjust
the meter to read zero (if applicable). Activate the glow
plug system (see Traction Unit Operator’s Manual) and
record the multimeter results.
Tool(s) required: Digital multimeter and/or inductive
Ammeter (AC/DC Current Transducer).
The Groundsmaster 3500--D glow plug system should
have a reading of approximately 27 Amps.
Test instructions: Properly connect the ammeter to the
digital multimeter (refer to manufacturers’ instructions).
Groundsmaster 3500--D
Page 5 -- 7
Electrical System (Rev. D)
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 256 pages
Document TypeCatalog
LanguageEnglish
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