Section 4 • Repair ProceduresJanuary 2012Part No. 228901 GS-30 • GS-32 • GS-46 • GS-47 4 - 9GROUND CONTROLS2-3Manual Platform Lowering CableThe manual platform lowering cable lowers theplatform in the event of a main power failure. Themanual platform lowering cable is attached to thebarrel end of the lift cylinder and is activated nextto the ground controls.How to Adjust the ManualPlatform Lowering Cable1 Raise the platform 7 to 8 feet / 2.1 to 2.4 m.2 Lift the safety arm, move it to the center of thescissor arm and rotate down to a verticalposition.3 Lower the platform onto the safety arm.Crushing hazard. Keep handsclear of the safety arm whenlowering the platform.4 Pull the handle of the manual platform loweringcable out until considerable resistance is felt.Release the handle.5 Measure the distance between the base of thehandle and cable mounting nut.Result: The measurement should be no greaterthan 1 /8 inch / 3 mm.abcdfgeNY7Platform manual lowering cable specificationGap, lowering handle to mounting nut 0 to 1 / 8 inch0 to 3 mmSkip to step 8 if the measurement is correct.6 To adjust, loosen the upper lock nut on thecable mounting bracket at the cylinder. Turn thelower lock nut clockwise to decrease thedistance or counterclockwise to increase thedistance. Tighten the upper lock nut.a manual lowering cable sheathb upper lock nutc cable mounting bracketd lower lock nute cable mounting nutf end of the lowering cableg manual lowering valve(hydraulic schematic item N)7 Repeat this procedure beginning with step 4.8 Raise the platform and rotate the safety arm tothe stowed position.9 Pull the manual lowering handle at the groundcontrols 2 to 3 times to ensure it is functioningcorrectly.
