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Products Description
Inside the 16Y transmission, the planetary sets are divided into two functional groups. The first three planetary sets are associated with forward and reverse movement, while the fourth and fifth sets are used for the three speed stages. The third planetary set has a double-planet configuration, which gives the output direction required by the transmission layout.
The clutch arrangement is also divided by function. Clutches 1, 2, 4 and 5 hold the relevant ring gears, while clutch 3 locks the main and driven members together for synchronous rotation. A control valve supplies hydraulic pressure to engage the required pair of clutches.
With a maximum input power of 120 kW, this unit falls into the 160hp hydraulic transmission power class. For buyers comparing replacement gearboxes, the hydraulic gearbox configuration should be matched against the original machine and transmission before purchase.
Product Parameters
|
Item |
Technical Data |
|
Model |
16Y |
|
Transmission Type |
Hydraulic Power-Shift Transmission |
|
Maximum Input Power |
120 kW |
|
Approx. Power Class |
160 hp |
|
Maximum Input Speed |
1,850 r/min |
|
Maximum Input Torque |
2,062 N·m |
|
Rated Torque Speed Range |
1,100–1,200 r/min |
|
Forward Gears |
3 |
|
Reverse Gears |
3 |
|
Planetary Rows |
5 |
|
Disc Clutches |
5 |
|
Main Circuit Pressure |
2 MPa |
|
Reducing Valve Pressure |
1.25 MPa |
|
Lubrication Pressure |
0.07–0.18 MPa |
|
Working Fluid |
No. 8 Hydraulic Transmission Oil |
|
Overall Size |
718.9 × 985.1 × 1451.4 mm |
The manual specifies the overall dimensions including the oil dipstick and piping.
Product Features
Six Travel Ratios
The transmission provides three forward and three reverse ratios:
|
Gear |
Ratio |
|
Forward 1 |
2.080 |
|
Forward 2 |
1.176 |
|
Forward 3 |
0.710 |
|
Reverse 1 |
1.600 |
|
Reverse 2 |
0.902 |
|
Reverse 3 |
0.546 |
Five Planetary Gear Sets
Five planetary stages form the main transmission mechanism. Four use single-planet transmission, while the third planetary set uses a double-planet arrangement.
Five Disc Clutches
The five clutches are arranged for direction control and speed selection rather than all performing the same task.
Defined Hydraulic Pressures
The manual gives separate values for main oil pressure, reducing valve pressure and lubrication oil pressure.
Product Advantages
The Hydraulic Transmission uses hydraulic pressure to operate the specified clutch combination. This means the gear selection process is based on the control valve supplying pressure to the required clutches rather than manually moving individual internal gears.
Another useful feature is the fixed relationship between clutch combinations and transmission ratios. For example, forward first gear uses clutches 1 and 3, while forward second gear uses clutches 1 and 5. Reverse first gear uses clutches 2 and 3.
For maintenance work, the defined oil-pressure values also provide reference points when checking transmission operation. The hydraulic gearbox requires a main oil pressure of 2 MPa and lubrication pressure of 0.07–0.18 MPa.
Product Applications
The 16Y unit is suitable for:
- Bulldozer transmission replacement
- Hydraulic power-shift systems
- Transmission refurbishment
- Earthmoving machinery
- Construction equipment
- Forward/reverse travel applications
- Three-speed bulldozer drivetrains
- Replacement of an existing hydraulic gearbox
The transmission can be evaluated for replacement when the original unit has internal wear, clutch problems or other transmission faults, provided the machine and connection specifications correspond.
After-Sales Service
For maintenance after installation, the manufacturer's manual provides several inspection intervals.
Every 50 hours:
Check the oil level and transmission control mechanism.
Every 200 hours:
Clean the oil filter.
Every 600 hours:
Replace the transmission oil and clean the oil pan and filter.
Every 2,400 hours:
Disassemble and inspect the transmission and torque converter, adjusting or replacing components when necessary.
If the Hydraulic Transmission develops clutch slipping, the manual lists low control pressure, a blocked filter, blocked oil passages and worn friction plates as possible causes.
Customization Options
For product matching or special orders, customers can send:
• Original transmission nameplate
• Machine model
• Existing gearbox photos
• Input power and speed
• Input torque
• Gear ratio requirements
• Installation dimensions
• Hydraulic connection information
• Technical drawings
For a Hydraulic Transmission replacement, providing the original part information is the easiest way to check whether the 16Y configuration is suitable.
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