JLG 1230ES Service Manual - Manual (Page 74)

SECTION 4 - BASE COMPONENTS
4-38 – JLG Lift – 3121222
Actuator - Limit Switch - Counterweight Installation (Machines Prior to S/N-0130013258)
1. Actuator Attach Screws/Nuts
2. PHP Actuator Assembly
3. Limit Switch (a)
4. Limit Switch Mounting Block (b)
5. Limit Switch Attach Screws 6. Torsion Spring (c)
7. Tube Spacer
8. Counterbalance Link Mounting Pin
9. Pin Retaining Ring
10. Left Side Countbalance Link
NOTE: Assembly same for both the left and right side PHP components.
(a) When the pothole is in the deployed position (bars down), adjust limit switch plunger
just past "click", re-tighten mounting block screws to frame.
(b) Apply Loctite #222 to mounting block screw threads on final tightening.
(c) Hook spring through slot in frame and the other end around the counterweight lug,
then slide the attach pin through the frame, spring, counterweight, tube spacer, install
the pin retaining ring.
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