Converting Category 3/4 Convertible Quick Coupler Upper Hook

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.

When full power is to be used on 8530 Tractors with ground engaging implements it is recommended to use CAT 4 upper hook if implement set up allows. The CAT 3 upper hook may be overloaded with very high draft loads.

2. Remove quick lock pin (B) and pin (C) to release center link (D).

3. Remove pin (E) and upper hook (F).

4. Remove pin (G) to remove stored upper hook (H) and replace with upper hook previously removed from quick coupler.

NOTE: Pin (C) must be installed left to right. Shoulder (I) will keep retaining pin (B) from being installed if pin (C) is installed incorrectly.

5. Use reverse sequence of steps to remove upper hook from quick coupler. Install previously stored upper hook into quick coupler.

A-Quick Coupler Frame
B-Quick Lock Pin
C-Pin
D-Center Link
E-Pin
F-Upper Hook
G-Pin
H-Stored Upper Hook
I-Shoulder

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