LUBRICANT 2P9863 - Caterpillar

2P9863 LUBRICANT Caterpillar parts 345B L, 65C, D349, D5C, D5H, D6H, D8L, D8N

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Alternative (cross code) number:
CA2P9863
2P-9863
2P9863

Buy LUBRICANT 2P9863 Caterpillar genuine, new aftermarket tractor parts with delivery
CHALLENGER, TRACK-TYPE TRACTOR,

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Compatible equipment models: 2P9863:

CHALLENGER 65C

EXCAVATOR 345B L

INDUSTRIAL ENGINE D349

TRACK-TYPE TRACTOR D5C D5H D6H D8L D8N Caterpillar

Number on catalog scheme: None

Caterpillar 2P9863 Parts scheme LUBRICANT

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The illustrations below show the N3 series alternator (35 amperes).Negative Diode Check
Illustration 1 g00869032
(1) stator (2) stator leads
Disconnect all stator leads (2) from the rectifier.
Disconnect the lead for the capacitor from the "D+" terminal.
Set the multimeter to the diode scale.
Illustration 2 g00868986
(3) Frame (4) Rectifier terminals
Connect one of the multimeter leads to one of the rectifier terminals (4). Connect the other multimeter lead to the frame (ground).
Record the multimeter reading.
Reverse the multimeter leads.
Record the multimeter reading.Expected Result: One reading is "0L" and the other reading is .4 to .9 volts.Results:OK - One reading is "0L" and the other reading is .4 to .9 volts. The diode is normal. Repeat steps 4 through 7 for the other rectifier terminals (4). STOP.NOT OK - Both readings are "00". The diode is shorted. Replace the rectifier. STOP.NOT OK - Both readings are "0L". The diode is open. Replace the rectifier. STOP.Positive Diode Check
Illustration 3 g00868988
Positive diode check (inside view) (4) rectifier terminals (5) Connection to the "B+" terminal
Illustration 4 g00868990
Positive diode check (outer view) (4) Connection to the rectifier terminals (5) "B+" terminal
Stator leads (2) remain disconnected from the rectifier.
The multimeter remains on the diode scale.
Connect the multimeter leads across one of the rectifier terminal (4) and "B+" terminal (5) .
Record the multimeter reading.
Reverse the multimeter leads.
Record the multimeter reading.Expected Result: One reading is "0L" and the other reading is .4 to .9 volts.Results:OK - One reading is "0L" and the other reading is .4 to .9 volts. The diode is normal. Repeat steps 3 through 6 for the other rectifier terminals (4). STOP.NOT OK - Both readings are "00". The diode is shorted. Replace the rectifier. STOP.NOT OK - Both readings are "0L". The diode is open. Replace the rectifier. STOP.Exciter Diode Check
Illustration 5 g00868991
Test for the Excitation diodes (inner view) (4) Rectifier terminals (5) (To the D+ terminal)
Illustration 6 g00868994
Test for the excitation diodes (outer view) (4) Rectifier terminals (5) (To the D+ terminal)
Stator leads (2) remain disconnected from the rectifier.
The multimeter remains on the diode scale.
Connect the multimeter leads across one of the rectifier terminal (4) and "D+" terminal (6) .
Record the multimeter reading.
Reverse the multimeter leads.
Record the multimeter reading.Expected Result: One reading is "0L" and the other reading is .4 to .9 volts.Results:OK - One reading is "0L" and the other reading is .4 to .9 volts. The diode is normal. Repeat steps 3 through 6 for the other rectifier terminals (4). STOP.NOT OK - Both readings are "00". The diode is shorted. Replace the rectifier. STOP.NOT OK - Both readings are "0L". The diode is open. Replace the rectifier. STOP.Note: The 35 amp alternator has three exciter diodes and three stator leads. The remaining alternators have three exciter diodes and four stator leads. If the alternator has four stator leads, do not test the stator lead with the black mark. The stator with the black mark lacks an exciter diode. Ignore the result for that stator lead. See Systems Operation, "Component Description" for more information on the stator and on