Track Tensioning and Detensioning

CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury.

Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure.

Search for leaks with a piece of cardboard. Protect hands and body from high pressure fluids.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source. Such information is available from Deere & Company Medical Department in Moline, Illinois, U.S.A.

CAUTION: Avoid possible personal injury. Tension kit valve should be in the closed position when attaching either end of the hose.

IMPORTANT: Foreign material can damage the hydraulic system. Keep hydraulic couplers free from debris.

IMPORTANT: Track tensioning is best performed when hydraulic oil in reservoir is less than 38 °C (100 °F), and track tensioning components are at least 4.5 °C (40 °F).

Tension or detension track using tension hose kit obtained from your John Deere Dealer.

Cut a 610 mm x 610 mm (24 in. x 24 in.) piece of cardboard and insert it between the hydraulic reservoir and windshield (A), to prevent movement of reservoir and possible damage to glass.

Remove hydraulic oil reservoir fill cap (B). The screen should remain in reservoir.

A-Windshield
B-Fill Cap

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With the valve closed, plug end of tension hose (A) into extend side of SCV I coupler.

Remove cap from tension receptacle and attach valve end of hose (B).

Start engine.

Set SCV flow to 5.0 (D) and detent time to "continuous" (E) on number one SCV.

Push SCV I lever forward to retract position.

Exit tractor and open valve (C) on tension hose.

Allow track to detension for five minutes.

Stop engine.

CAUTION: If any oil has spilled or bubbled out of reservoir fill spout during detensioning process, contact your John Deere Dealer for possible repair of track tensioning system.

Replace cap on hydraulic reservoir and remove cardboard from between windshield and reservoir.

Start engine.

Pull SCV I lever back to the detent position to extend the tension cylinder. Allow oil to flow into the system for at least 6 minutes.

Close valve (C) on tension hose.

Stop engine and remove tension hose kit.

Clean up any oil that may have spilled or leaked during detension or tensioning process.

A-Tension Hose
B-Valve End of Hose
C-Valve
D-5.0
E-Continuous

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