Massey Ferguson 7714, 7715, 7716, 7718 Tractor Service Manual

Massey Ferguson 7714, 7715, 7716, 7718 Tractor Service Manual

$39.00

Massey Ferguson 7714, 7715, 7716, 7718 Tractors Workshop Manual – 3321 Pages
Technician Service Book MF 7700 Series Tractors – 846 Pages
Parts Catalog – 750 Pages

Format: PDF
Language: English
Publication No: ACT0009130

 

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Description

Massey Ferguson 7714, 7715, 7716, 7718 Tractor Manual

Model: Massey Ferguson MF 7700 Series Tractor
Format: PDF
Language: English
Publication No: ACT0009130

Massey Ferguson 7714, 7715, 7716, 7718 Tractors Workshop Manual – 3321 Pages
Technician Service Book MF 7700 Series Tractors – 846 Pages
Parts Catalog – 750 Pages

Manual Table of Content

1 Introduction
2 Separation of assemblies
3 Engine
4. Clutch
5. Gearbox
6. Rear axle
7. Power Take Off
8. Front axle
9. Hydraulics
10. Electricity
11. Electronics
12 Cab
13 Accessories
14 Service tools

Power transmission hydrostatic system

The Dyna-VT transmission unit is elastically suspended inside the transmission housing. The latter also acts as an oil tank for the hydrostatic transmission.
Filling: SAE 15W-40 viscosity oil or any other oil complying with the standard CMS M1145.

The lubrication pump sucks oil through the suction strainer. The temperature sensor (X19) monitors the temperature of the transmission oil. Put simply, if the transmission oil is cold, a small amount of oil passes into the cooler and a lot of oil passes through the bypass valve. This valve opens at a differential pressure of approximately 3,5 bar. The temperature of the hydraulic oil is monitored by the temperature sensor (X19). The service pump produces the system pressure for the Dyna-VT control spool valves and the accessory control solenoid valves. The system pressure of approximately 18 bar is limited by a pressure relief valve with throttling port.

Two different pressures are present in the system:
– Low pressure for the Dyna-VT transmission control, rear PTO clutch, differential lock and universal joint brake. The measurement point of this pressure is approximately 18 bar.
– High pressure inside the Dyna-VT transmission. Pressure measurement point: max. approx. 500 bar + 20 bar.
Oil filter blockage is monitored by a pressure switch according to the transmission oil temperature. When this temperature is below 50 °C, oil filter blockage is not monitored.
Cooled transmission oil enters the high-pressure system alternately via two non-return valves. Hot transmission oil leaves the high-pressure system via the pressure relief valve.

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