Converting Category 4—Convertible Quick Coupler Lower Hooks

CAUTION: Use proper lifting device when converting coupler. Failure to do so can result in personal injury.

NOTE: A second person is recommended to align components during conversion.

If category 4 lower hooks are to be used on category 3 implements, bushings are needed over the category 3 pins; these bushings can be purchased through your John Deere dealer.

1. NOTE: Lower hooks are not marked for left-hand or right-hand side. Do not move lower hooks from one side to the other.

   Support quick coupler frame (A).

   
   RXA0085785-UN-10JAN06

   Converting Lower Hooks

   A - Quick Coupler Frame

   B - Cap Screw

   C - Retainer

   D - Pin

   E - Lower Hook

   F - Category 3 Hook

   G - Category 4N Hook

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2. Remove cap screw (B).

3. Remove retainer (C), then pin (D).

   NOTE: Because lower hook (E) has a category 3 hook (F) on one end and a category 4N hook (G) on the opposite end, it is used for both category 3 and 4N simply by turning it end for end.

4. Remove lower hook by rotating it down and to the rear of the coupler, then sliding it out at the front of the coupler.

5. Install lower hook, with desired end facing out. Using a reverse motion of removal, rotate it up and in.

6. Install pin, retainer and cap screw. Tighten to torque.

   Item	Measurement	Specification
   Lower Hook Cap Screws	Torque	100 N·m (74 lb-ft)