Loosen the lock screw in the side of the knob.
Remove the knob from the valve shaft.
Install the replacement knob on the valve shaft.
Tighten the lock screw in the side of the knob until it is flush with the outside of the knob.
Install round head pin into the knob. Tighten until the head is seated against the knob.
3-12. Hydraulic Unit HIGH PRESS REGULATOR Knob Replacement.
a. Rotate the knob one to two turns toward INCREASE.
b. Remove the retaining ring from the top of knob.
c. Rotate the knob toward DECREASE until it can be lifted from the valve.
d. Position the replacement knob on the valve. Rotate the knob toward INCREASE until the shaft
extends through the knob with clearance for the retaining ring.
e. Install the retaining ring on the shaft.
3-13. Hydraulic Unit Cycle Motor Crank Arm Replacement.
a. (See fig. 6-4, sheet 3 of 4.) Remove the quick-release storage pin (45) from the crank arm.
b. (See fig. 6-7.) Remove the plug and loosen the smallest recessed screw ( 10) in the cycle motor
driver crank (12).
C. Remove the bolt (2) and washer (7) securing the crank arm (3) to the driver crank ( 12). Remove
the crank arm (3).
d. Install the bolt through the replacement crank arm bearing. Install the washer between the bear-
ing and the driver crank. Install the bolt in the driver crank arm. Tighten the bolt.
e. Tighten the smallest recessed screw in the input arm and install the plug.
f. Store the crank arm using the quick-release storage pin.
3-14. Hydraulic Unit Cycle Motor Driver Crank Replacement.
a. Remove crank arm (para 3-13).
b. Loosen the two larger recessed screws (11) in the driver crank ( 12).
c. Remove the driver crank from the cycle motor shaft.
d. Install the replacement driver crank on the cycle motor shaft. Make sure the two larger recessed
screws align with the slot in the motor shaft.
e. Attach the driver crank to the motor shaft by tightening the two larger recessed screws.
f. Attach the crank arm to the driver crank (para 3-13).
3-15. Hydraulic Unit ILCA Mount Bolt Replacement.
(See fig. 6-9.) Remove the roll pin (8) from the manifold
Remove the mount bolt (9) and washer (10).
Install washer and replacement bolt.
Install the roll pin.