3046 Engine for Caterpillar Built Machines Glow Plugs - Test Caterpillar


Glow Plugs - Test
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3046 Engine for Caterpillar Built Machines [SENR6457]
ELECTRICAL AND STARTING SYSTEM
GLOW PLUG GP
3046 Engine for Caterpillar Built Machines Glow Plugs - Test
1.1. Continuity Check of the Glow Plugs
2.1. Checking the Operation of the Glow Plug

Continuity Check of the Glow Plugs

Table 1
Required Tools    
Part Number     Part Name     Qty    
237-5130     Digital Multimeter     1    

The following test will check the continuity of the glow plugs.

  1. Disconnect the power supply and the bus bar.

  1. Set the 237-5130 Digital Multimeter to check continuity (resistance). Turn the audible signal on the digital multimeter ON.

  1. Place one probe on the connection for the glow plug and the other probe to a suitable ground. The Digital Multimeter should make an audible sound. Replace the glow plug if there is no continuity.

  1. Check the continuity on all the glow plugs.

Checking the Operation of the Glow Plug

Table 2
Required Tools    
Part Number     Part Name     Qty    
231-5130     Digital Multimeter     1    
225-8266     Ammeter     1    

The following test will check the operation of the glow plugs.

  1. Disconnect the power supply and the bus bar.

  1. Connect the power supply to only one glow plug.

  1. Place the 225-8266 Ammeter on the power supply wire.

  1. Connect the 237-5130 Digital Multimeter to the terminal on the glow plug and to a suitable ground.

  1. Turn the switch to the ON position in order to activate the glow plugs.

  1. Check the reading on all of the glow plugs. Refer to Specifications, "Glow Plugs" for the values of the current for each glow plug.

  1. If there is no reading on the ammeter check the electrical connections. If the readings on the ammeter are low replace the glow plugs. If there is still no reading replace the glow plugs.

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