5I8125 GEAR AS Caterpillar parts
311, 311B, 311C, 312B, 312C, 312C L, 314C
Rating:
Alternative (cross code) number:
CA5I8125
5I-8125
5I8125
CA5I8125
5I-8125
5I8125
Weight: 0.80 pounds 0 kg.
EXCAVATOR,
Number on catalog scheme:
2
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Information:
Buffered Transmission Output Speed (TOS)
This is the output from the transmission output speed sender after it goes through the ECM to the speedometer.Modes Of Operation
Power-up
Upon power-up, Solenoids D and G are energized and all other solenoids are de-energized. Normal operation is established once the shift lever has been moved to the Neutral or Park position.Start
The transmission ECM has a neutral start feature. The operator controlled key switch is an input to the ECM with the start relay being powered by an output from the ECM. This allows the ECM to inhibit starting the machine if certain conditions are not met. The shift lever must be in Neutral or Park before the ECM will allow the start relay to be energized.Upshift
When the shift handle is moved from the current gear position to a higher gear position, the ECM will shift the transmission immediately. If an upshift is attempted with the transmission modulator pedal depressed, no action by the ECM is taken until the transmission modulator pedal is released.Downshift
When the shift handle is moved from the current gear position to a lower gear position, the ECM will shift the transmission immediately. If a downshift is attempted with the transmission modulator pedal depressed, no action is taken until the transmission modulator pedal is released. After it is released, the ECM will determine the proper gear.If an overspeed condition occurs, the transmission is shifted to the lowest gear possible using special shift points. Unit sequential downshifts result in the desired gear. If the TOS has not lowered below an overspeed condition, the ECM will upshift to the appropriate gear.Shift Out of Neutral
When the shift handle is moved from Neutral into a position which matches the direction the machine is moving, the ECM will first check the TOS and determine if the requested gear can be obtained without overspeeding the transmission. If no overspeed condition will occur, then the shift is made.If a shift out of Neutral to the requested gear will cause an overspeed condition, the ECM will shift to the lowest gear possible.When a shift out of Neutral is attempted with the transmission modulator pedal depressed, one of two things will happen:* If the TOS is below First gear high idle, the shift is made immediately.* If the TOS is above First gear high idle, No Shift will be made until the TOS drops below First gear high idle or the transmission modulator pedal is released.Shift Into Neutral
When the shift handle is moved from a gear position to Neutral, the ECM will shift the transmission to Neutral immediately. The status of the transmission modulator pedal or the TOS value does not matter.Directional Shift
A directional shift is when the shift handle is moved from one gear position to another gear position of the opposite direction or where a shift out of Neutral is requested with the machine moving in the opposite direction requested.
This is the output from the transmission output speed sender after it goes through the ECM to the speedometer.Modes Of Operation
Power-up
Upon power-up, Solenoids D and G are energized and all other solenoids are de-energized. Normal operation is established once the shift lever has been moved to the Neutral or Park position.Start
The transmission ECM has a neutral start feature. The operator controlled key switch is an input to the ECM with the start relay being powered by an output from the ECM. This allows the ECM to inhibit starting the machine if certain conditions are not met. The shift lever must be in Neutral or Park before the ECM will allow the start relay to be energized.Upshift
When the shift handle is moved from the current gear position to a higher gear position, the ECM will shift the transmission immediately. If an upshift is attempted with the transmission modulator pedal depressed, no action by the ECM is taken until the transmission modulator pedal is released.Downshift
When the shift handle is moved from the current gear position to a lower gear position, the ECM will shift the transmission immediately. If a downshift is attempted with the transmission modulator pedal depressed, no action is taken until the transmission modulator pedal is released. After it is released, the ECM will determine the proper gear.If an overspeed condition occurs, the transmission is shifted to the lowest gear possible using special shift points. Unit sequential downshifts result in the desired gear. If the TOS has not lowered below an overspeed condition, the ECM will upshift to the appropriate gear.Shift Out of Neutral
When the shift handle is moved from Neutral into a position which matches the direction the machine is moving, the ECM will first check the TOS and determine if the requested gear can be obtained without overspeeding the transmission. If no overspeed condition will occur, then the shift is made.If a shift out of Neutral to the requested gear will cause an overspeed condition, the ECM will shift to the lowest gear possible.When a shift out of Neutral is attempted with the transmission modulator pedal depressed, one of two things will happen:* If the TOS is below First gear high idle, the shift is made immediately.* If the TOS is above First gear high idle, No Shift will be made until the TOS drops below First gear high idle or the transmission modulator pedal is released.Shift Into Neutral
When the shift handle is moved from a gear position to Neutral, the ECM will shift the transmission to Neutral immediately. The status of the transmission modulator pedal or the TOS value does not matter.Directional Shift
A directional shift is when the shift handle is moved from one gear position to another gear position of the opposite direction or where a shift out of Neutral is requested with the machine moving in the opposite direction requested.
Caterpillar parts catalog:
Parts gear Caterpillar catalog:
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D
312, 312B, 312C, 312C L, 313B, 314C, E120B
311, 311B, 311C, 312B, 312C, 312C L, 314C, 318C, 319C, 320, 320 L, 320B, 320B L, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321B, 321C, 323D L, 323D LN
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN...
311, 311B, 311C, 312B, 312C, 312C L, 314C, 318C, 319C, 320, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321C, 323D L, 323D LN
311, 311B, 311C, 312, 312B, 312C, 312C L, 314C, 318C, 319C, 320, 320 L, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321C, 323D L, 323D LN
312C, 312C L, 314C
312C, 312C L, 314C
312C, 312C L, 314C
0949908
GEAR
311, 312, 320, 320 L, 320N, E110, E110B, E120, E120B, E140, E200B, E70B
311, 312, 320, 320 L, 320N, E110, E110B, E120, E120B, E140, E200B, E70B
312B
1141522
GEAR
312B
312B
5I7673
GEAR
311B, 311C, 312C, 312C L, 314C, 318C, 319C, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D LRR, 321B, 321C, 323D L, 323D LN
311B, 311C, 312C, 312C L, 314C, 318C, 319C, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D LRR, 321B, 321C, 323D L, 323D LN
1786550
GEAR
311C, 312C, 312C L, 314C, 318C, 319C, 320C, 320C FM
311C, 312C, 312C L, 314C, 318C, 319C, 320C, 320C FM
311C, 311D LRR, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN...
311B, 311C, 312B, 312C L, 320 L, 320B, 320C, 320C FM, E110B, E120B, E200B
311, 311B, 311C, 312B, 312C, 312C L, 314C, 318C, 319C, 320, 320 L, 320B, 320B L, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321B, 321C, 323D L, 323D LN
3031451
GEAR
307C, 308C
307C, 308C
312C, 312C L, 314C
312C, 312C L, 314C
312C, 312C L, 314C
311, 311B, 311C, 312, 312B, 312C, 312C L, 314C, 318C, 319C, 320, 320 L, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321C, 323D L, 323D LN
5I7858
GEAR AS
311, 311B, 311C, 312, 312B, 312C, 312C L, 314C
311, 311B, 311C, 312, 312B, 312C, 312C L, 314C
311, 311B, 311C, 312B, 312C, 312C L, 314C, 318C, 319C, 320, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D LRR, 320N, 321C, 323D L, 323D LN