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FRAME AS 2389534 - Caterpillar



2389534 FRAME AS Caterpillar parts 312C FRAME
Rating:
81
Alternative (cross code) number:
CA2389534
238-9534
2389534
Caterpillar 2389534 FRAME AS

Buy FRAME AS 2389534 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR,

Compatible equipment models: 2389534:

EXCAVATOR  312C   Caterpillar
Number on catalog scheme: 12
 
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Transmission Over Speed Protection Strategy
Overspeed protection is a feature that utilizes transmission shifts to help protect the engine from running at an overspeed condition. In addition, overspeed protection ensures that the transmission will never be shifted into a gear that would cause an overspeed condition.Overspeed Upshift
The control will upshift the transmission by one gear when the transmission output speed reaches the overspeed up shift point for the current gear. The control does not limit the number of overspeed up shifts. If the transmission output speed continues to increase, the control will upshift, based on overspeed upshift points, until the transmission reaches the top gear.Overspeed Downshift
The control will downshift the transmission by one gear when the actual gear is higher than the selected gear and the transmission output speed decreases below the overspeed downshift point.Engine Controlled Downshift
The shift control logic contains downshift inhibit points. These "inhibit" points were established in order to prevent abusive operation of the power train. The "inhibit" points also protect the operator from possible adverse operation of the machine. The Transmission ECM will downshift the transmission by one gear when the actual gear is higher than the desired gear and the transmission output speed is below the overspeed downshift rpm point. The current downshift inhibit strategy is good for protecting the transmission and protecting the engine from damage caused by overspeed. The downshift inhibit strategy does not allow the requested shift to take place as quickly as possible. The engine controlled downshift feature will try to resolve this issue. If the transmission/chassis ECM requests a downshift and the transmission output speed is above the overspeed downshift point, the transmission/chassis ECM will command the minimum engine speed among the gears between the current gear and the minimum downshift gear.In an example of this process, suppose that the actual gear is 6F. The operator request downshifts to 3F. If the transmission output speed is above the overspeed downshift transmission output speed for 5F, the transmission/chassis ECM will command the minimum engine speed between 6F to 5F, 5F to 4F and 4F to 3F.Note: The downshift function for engine control will be deactivated if the parking brake is engaged. The downshift function for engine control will also be deactivated if the inching pedal or the switch for the inching pedal is depressed.Transmission Gear Limiting
The Transmission Output Speed Steering Limit (TOSSL) is evaluated against the transmission speed limiting tables to determine the highest gear that would not exceed TOSSL. All gears above this gear will be inhibited. If the actual gear is an inhibited gear, the gear limiting feature will check to see if shifting to the highest gear would cause an overspeed condition. If no overspeed condition is predicted, the transmission will command a shift to this gear. If an overspeed condition is predicted, a shift command will be prohibited.Autoshift Operation
The autoshift function allows the operator to set or configure the range of gears that the transmission/chassis ECM will use for automatic shifting of the transmission in the

Caterpillar parts catalog:

Caterpillar parts catalog
312C & 312C L Excavators BWH00001-UP (MACHINE) POWERED BY 3064 Engine


Parts frame Caterpillar catalog:

1674086 FRAME AS-WINDOW
312C, 315C, 318C, 319C, 319D, 320C, 322C, 323D L, 323D LN, 324D, 324D LN, 325C, 325D, 325D L, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 330D MH, 336D L, 336D LN, 345C, 345C L, 345D, 345D L, 365C, 3...
3096778 FRAME AS
303.5D, 303.5E, 303E CR, 304D CR, 304E
3096024 FRAME AS
303.5C, 303.5D, 303.5E, 303E CR, 304D CR, 304E
3527766 FRAME & BEARING AS
303.5C, 303.5D, 303.5E, 304D CR, 304E
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