Warm Transmission-Hydraulic System Oil

causym CAUTION: Overheated hydraulic oil can cause personal injury and component malfunctions. To prevent hydraulic oil from overheating, DO NOT hold selective control valve (SCV) or multifunction control lever in operating position for an extended period of time.

NOTE: Operation can be done at Rear SCV or at Mid SCV.

Hydraulic system may be slow to function when tractor is started in cold weather. Cold oil will not flow easily through the hydraulic system filter (A).

Steering will be slow until system warms up.

Hydraulic system will function normally when oil warms up.

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Hydraulic oil filter


A-Hydraulic oil filter

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1. Connect jumper hose to SCV I couplers (A).


A-SCV I couplers

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Triple Deluxe rear SCV

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NOTE: Knob setting stop is in the front, center position (bold arrow).

2. Rear SCV (if equipped): Turn SCV I selector knob to cylinder (automatic) detent position (A).

3. Turn flow control knob (B) fully counterclockwise (open).


A-Automatic detent position
B-Flow control knob-If equipped (Deluxe valve)

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Viewed from operator's station

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Deluxe rear SCV-Flow control valve-If equipped

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4. Depress clutch pedal, start engine and idle at 1200 rpm.

5. Move SCV I control lever (A) forward or rearward until hydraulic oil warms to operating temperature.

NOTE: If equipped with dual rear SCV and for any mid SCV, control lever must be held into extend or retract.

NOTE: To prevent SCV levers from moving unintentionally, use SCV lockout lever (D).

6. Turn steering wheel side-to-side to check warm-up progress. When wheel turns smoothly without hesitation, oil has warmed to operating temperature. After transmission-hydraulic oil has warmed to operating temperature:

7. Return SCV lever to neutral.

8. Rear SCV (If Equipped): Return detent selector and flow control knobs to original positions and setting.

9. Remove jumper hose.

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SCV levers


A-SCV I control lever
B-SCV II control lever-If equipped
C-SCV III control lever-If equipped
D-SCV lockout lever

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