May 2021
Service and Repair Manual
Manifolds
Part No. 1306585GT
GS
™
-2669 DC • GS
™
-3369 DC • GS
™
-4069 DC
61
How to Test a Coil Diode
Properly functioning coil diodes protect the
electrical circuit by suppressing voltage spikes.
Voltage spikes naturally occur within a function
circuit following the interruption of electrical current
to a coil. Faulty diodes can fail to protect the
electrical system, resulting in a tripped circuit
breaker or component damage.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
1 Test the coil for resistance. Refer to Repair
Procedure,
How to Test a Coil
.
2 Connect a 10W resistor to the negative
terminal of a known good 9V DC battery.
Connect the other end of the resistor to a
terminal on the coil.
Resistor 10
Ω
Genie part number 27287
Note: The battery should read 9V DC or more
when measured across the terminals.
1 multimeter
2 9v DC battery
3 10
Ω
resistor
4 coil
Note: Dotted lines in illustration indicate a reversed
connection as specified in step 6.
3 Set a multimeter to read DC current.
Note: The multimeter, when set to read DC
current, should be capable of reading up to
800 mA.
4 Connect the negative lead to the other
terminal on the coil.
5 Momentarily connect the positive lead from
the multimeter to the positive terminal on the
9V DC battery. Note and record the current
reading.
6 At the battery or coil terminals, reverse the
connections. Note and record the current
reading.
Result: Both current readings are greater than
0 mA and are different by a minimum of 20%.
The coil is good.
Result: If one or both of the current readings
are 0 mA, or if the two current readings do not
differ by a minimum of 20%, the coil and/or its
internal diode are faulty and the coil should be
replaced.
Содержание Genie GS-2669 DC
Страница 62: ...Service and Repair Manual May 2021 Manifolds 50 GS 2669 DC GS 3369 DC GS 4069 DC Part No 1306585GT ...
Страница 135: ...May 2021 Service and Repair Manual 123 use Ground and Platform Control Boxes Fuse Box Layout All Models ...
Страница 138: ...Service and Repair Manual May 2021 126 Ground Control Box Layout ...
Страница 140: ...Service and Repair Manual May 2021 128 Platform Control Box Layout ...
Страница 141: ...May 2021 Service and Repair Manual 129 Electrical Schematics Electrical Schematic ...
Страница 144: ...Service and Repair Manual May 2021 132 Electrical Schematic ...
Страница 145: ...May 2021 Service and Repair Manual 133 Hydraulic Schematics Hydraulic Schematic ...
Страница 147: ......