Duplex Roller VMD80 (Instruction Manual)


Brand: JCB

Instruction Manual for Duplex Roller VMD 80

PN: 04100/28135A

Edition: November 2005

Valid from serial no.: JCB 16 010 00.

Total Pages 42

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Duplex Roller VMD80 (Instruction Manual)

10.1.1 GENERAL
Duplex Roller VMD80 consists of the lower section and the spring mounted upper section with guiding bar.

The lower section comprises the following construction groups:

– The roller frame consists of two lateral cheeks and two bolted on cross members.

– The exiter is as a cross member in the center, bolted on between the two cheeks.

– The drums are seated with anti–friction bearings in the two lateral cheeks.

– The adjustable, rigid scrapers are equipped with vulkollan strips and are situated at the front and rear at each drum.

The upper section comprises the following construction groups:

– In the lower section, the engine plate is suspended in a vibration–proof manner by means of 4 elastic suspensions. It carries the engine as well as the water tank and each one sprinkling tube for every drum.

The single–cylinder engine is mounted on the engine plate and carries the centrifugal clutch for the propulsion and exciter drive.

The propulsion is hydrostatic. The variable displacement hydropump with gear pump is driven by engine via toothed belt.


The variable displacement hydro pump is in associated relation with the fixed displacement hydro motor in the lower section by means of hoses.

The drums are connected through a gear drive with the fixed displacement hydro motor flanged on at the left cheek. The gear drive is covered by a gear cover.
Pump and motor are connected with hoses.


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