52 of 59 GH-24, GH-30, GH-45, GH-60 Rev.003
HYDRAULIC GEARBOX DISASSEMBLY
NOTE: (SEE DIAGRAM on page 34)
1) Remove the (4) metric socket head cap screws which hold the gearbox cover and motor to the
gearbox.
2) Remove the motor and cover together.
3) Loosen set screw and remove Item 16, (dial switch)
4) Remove the two screws, Item 17. Then remove Item 18, selector body (disc).
5) Item 13 (selector axle) must be in the neutral position in order to remove the axle itself
a. NOTE: You will have to move the gear set up and down until the axle sits horizontal.
6) Remove the chuck
7) Once Item 13 is removed, flip the gearbox upside down. Remove Item 20 (axle key) from the spindle.
8) You will now have to press the shaft (Item 7) and the gear assembly out of the gearbox together (This
will keep you from losing the ball and spring (Items 21 and 22).
9) Slowly remove the shaft (Item 7) from the gear assembly. Once the ball is exposed the pressure of the
spring behind it will push the ball outward.
a. NOTE: DO NOT LOOSE THE BALL AND SPRING (Item 21 and 22).
10) Reassemble in the reverse order. Make sure to grease all components.
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