Zetor 8011 full specification & gear chart

Zetor 8011 crystal tractor units were manufactured by the Zetor company between the years 1968 to 1987. This tractor was made in 2 wheel drive and 4 wheel drive variant with safety cabin and it was one the most advance tractor of its time period. Let’s discuss full necessary specifications of tractor: Tractor has 4 cylinder naturally aspirated liquid cooled engine with 4562 CC displacement which can produce about 75 to 80 hp at 2200 engine rated RPM. Here are full specifications of tractor:

Engine

Before adjusting valve clearance tight cylinder head bolts with 170 to 190 Nm torque.

Description

The Zetor 8011 is equipped with a powerful and reliable engine, the Z8001. This engine is a 4-cylinder, 4-stroke, naturally aspirated, liquid-cooled diesel engine. With a displacement of 4562 CC and a borestroke ratio of 110120, it delivers an impressive horsepower ranging from 75 to 80. The engine operates at a rated RPM of 2200, with a maximum RPM of 2500 indicated on the tachometer. The fuel injection pump is inline, ensuring efficient fuel delivery. The compression ratio stands at 17:01, ensuring optimal combustion. The firing order of the cylinders is 1-3-4-2, ensuring smooth operation. Injection timing is set at 24°+2° before top dead center, while the injection pressure reaches 160 atm for precise fuel delivery. The engine is equipped with a centrifugal, full flow type oil filter, ensuring clean lubrication. Valve clearances are set at 0.3 mm for both intake and exhaust in cold conditions. The nozzle type used is DOP 150 S 525 – 1402. While torque and specific fuel consumption (SFC) data are not available, the Zetor 8011 engine remains a robust and efficient choice for various agricultural applications.

Transmission

This transmission consists of single dry disc clutch with 8 forwards and 4 reverse gear option without torque multiplier and with torque multiplier these speeds are doubled means 16 speeds for forwards and 8 speeds for reverse. Torque multiplier (torque multiplier is equipped near steering wheel which reduces speed of gear without disturbing clutch and transmission gears and it is very beneficial when tractor is with full load and suddenly engine starts to drop RPM).

Gear speeds at engine rated RPM

These gear speeds are without torque multiplier and 16.9/14-34 rear tyer size:

However there is no data available for the reduced gear speeds with torque multiplier.

Steering

PTO

Hydraulics

Tyre size and air pressure according to condition

Overall Dimensions

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Instrument cluster

Here are some basic features of instrument cluster of the tractor:

• Engine tachometer with 2500 maximum engine RPM.
• Speedometer.
• Torque multiplier.
• High beam indicator.
• Push type starter button.
• Turn indicator lights.
• Engine oil pressure gauge.
• Engine temperature gauge.
• Air pressure gauge.
• Engine hour meter.
• Ammeter
• Fuel delivery hand lever.

Apart from these features this tractor has many other features such as:

• Front axle shock absorber system.
• Foot operated rear wheel differential lock.
• Flat platform at that time.
• Torque multiplier which was first time introduced by the Zetor company in tractor industry.
• Air compressor system and air pressure gauge etc.

Lubrication oil amount & type for Zetor 8011

Periodic Maintenance chart

Apart from this checking of oil in different parts and toping up and lubrications of all greasing points should be done according to requirement.