Service Manual
May 2015
Manifolds
96
GS-2669 BE • GS-3369 BE • GS-4069 BE
Part No. 1257106
7-4
Valve Coils
How to Test a Coil
A properly functioning coil provides an
electromagnetic force which operates the solenoid
valve. Critical to normal operation is continuity
within the coil. Zero resistance or infinite resistance
indicates the coil has failed.
Since coil resistance is sensitive to temperature,
resistance values outside specification can
produce erratic operation. When coil resistance
decreases below specification, amperage
increases. As resistance rises above specification,
voltage increases.
While valves may operate when coil resistance is
outside specification, maintaining coils within
specification will help ensure proper valve function
over a wide range of operating temperatures.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Note: If the machine has been in operation, allow
the coil to cool at least 3 hours before performing
this test.
1 Tag and disconnect the wiring from the coil to
be tested.
2 Test the coil resistance using a multimeter set
to resistance (Ω). Refer to the Valve Coil
Resistance Specification table.
Result: If the resistance is not within the
adjusted specification, plus or minus 10%,
replace the coil.
Valve Coil Resistance
Specification
Note: The following coil resistance specifications
are at an ambient temperature of 68°F / 20°C. As
valve coil resistance is sensitive to changes in air
temperature, the coil resistance will typically
increase or decrease by 4% for each 18°F / 20°C
that your air temperature increases or decreases
from 68°F / 20°C.
Description
Specification
Solenoid valve, 2 position 2 way
24V DC with diode
(schematic items CA, CB, CC, CD, CE,
CF)
25Ω
Solenoid valve, 2 position 3 way
24V DC with diode
(schematic items BA, FB, FF, FO, FP,
FR, )
35Ω
Solenoid valve, 3 position 5 way
24V DC with diode (schematic item FL)
35Ω
Summary of Contents for Genie GS-2669 BE
Page 1: ...Service Manual GS 2669 BE GS 3369 BE GS 4069 BE Part No 1257106 Rev A3 May 2015...
Page 27: ...May 2015 Service Manual Specifications Part No 1257106 GS 2669 BE GS 3369 BE GS 4069 BE 11...
Page 100: ...Service Manual May 2015 Manifolds 84 GS 2669 BE GS 3369 BE GS 4069 BE Part No 1257106...
Page 173: ...May 2015 Service Manual 157 Contactor Box Layout All Models...
Page 176: ...Service Manual May 2015 160 Ground Control Box Layout All Models...
Page 177: ...May 2015 Service Manual 161 Platform Control Box Layout All Models...
Page 180: ...Service Manual May 2015 164 Generator Wiring Diagram All Models...
Page 185: ...May 2015 Service Manual 169 Electrical Schematic GS 4069 BE with 2 Speed Lift ANSI CSA...
Page 188: ...Service Manual May 2015 172 Electrical Schematic GS 4069 BE with Proportional Lift ANSI CSA...
Page 193: ...May 2015 Service Manual 177 Electrical Schematic GS 4069 BE with 2 Speed Lift AS CE...
Page 196: ...Service Manual May 2015 180 Electrical Schematic GS 4069 BE with Proportional Lift AS CE...
Page 197: ...May 2015 Service Manual 181 Hydraulic Schematic GS 2669 BE and GS 3369 BE with 2 Speed Lift...
Page 201: ...May 2015 Service Manual 185 Hydraulic Schematic GS 4069 BE with 2 Speed Lift...
Page 205: ......