Electrical System Quick Checks
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 the multimeter to the DC volts setting. The battery
should be at a temperature of 60o to 100o F (16o to 38o
C). The ignition key should be in the OFF position and
all accessories turned off. Connect the positive (+) me-
ter lead to the positive battery post and the negative (–)
meter lead to the negative battery post. Use the table to
the right to determine charge level of the battery.
v
v
v
v
50% charged
25% charged
0% charged
Note:
This test provides a relative condition of the bat-
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 the charging
system is functioning. It will tell you if the charging sys-
tem has an output, but not its capacity.
After allowing the engine to run for at least three (3) min-
utes, battery voltage should be at least 0.5 volts higher
than initial battery voltage (see example in table to the
right).
Use a multimeter set to the DC volts position. Connect
the positive (+) meter lead to the positive battery post
and the negative (–) meter lead to the negative battery
post. Leave the multimeter test leads connected to the
battery and record the battery voltage.
Note:
ceeds 16 volts, the regulator in the charging system
should be inspected.
While engine is running, if battery voltage ex-
After allowing the engine to run for at least three (3) min-
utes, if battery voltage does not increase at least 0.5
volts, additional testing of the battery and/or charging
system should be performed.
Note:
Upon starting the engine, the battery voltage
will drop and then should increase once the engine is
running.
Note:
Depending upon the condition of the battery
Acceptable voltage increase:
charge and battery temperature, the charging system
voltage will increase at different rates as the battery
charges.
Initial Battery Voltage
Battery Voltage after 3 Minute Charge
Difference
= 12.25 v
= 12.80 v
= +0.55 v
Start the engine and run at high idle speed. Allow the
battery to charge for at least three (3) minutes. Record
the battery voltage.
Glow Plug System Test (Groundsmaster 328–D)
This is a fast, simple test that can help to determine the
integrity and operation of the Groundsmaster 328–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.
ter pickup around the main glow plug power supply wire.
Adjust the meter to read zero (if applicable). Cycle the
glow plug system at least two times (per instructions in
Traction Unit Operator’s Manual) and record the final re-
sults.
Use a digital multimeter and/or inductive Ammeter (AC/
DC Current Transducer) set to the correct scale. With
the ignition switch in the OFF position, place the amme-
The Groundsmaster 328–D glow plug system should
have a reading of approximately 27 Amps. If low current
reading is observed, one (or more) glow plugs is faulty.
Groundsmaster 300 Series
Page 6A – 3
Electrical System (Rev. G)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 300, Toro Groundsmaster 328 D, Toro Groundsmaster 92801SL |
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(2 votes, average: 5 out of 5)
Lawn and Garden readers have rated Toro 92801SL Rev I Groundsmaster 300 Series Groundsmaster 328 D Service Manual 5.0 out of 5.0 based on 2 product reviews. Need 328D. Manual pdf. Will rate after finding manual
t has been a very reliable machine but getting parts is hard and not cheap to buy , generic parts has been cost effective and reliable , i am unable to get a wiring circut diagram for this unit as most problems are electrical problems