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Summary of Contents for Terex Optima TC
- Page 1 Tech Tips Service Call: Optima TC Boom Comp Adjustment Tools Required: Open End Wrench - 3/8”, 7/16”, 1/2”, 5/8”, 3/4” 3/8” Socket Drive Set Allen Wrench - 3/32” Model(s): Optima TC with Compensation Tech-Tip 80 Rev. B Released: 7/11/2019...
- Page 2 Tech Tips Tech Tip Safety Rules Danger Failure to obey the instructions and safety rules in the appropriate Operator's Manual and Service Manual for your machine will result in death or serious injury. Many of the hazards identified in the operator’s manual are also safety hazards when maintenance and repair procedures are performed.
- Page 3 Tech Tips Step 1 This adjustment is made to keep the upper boom at or just above horizontal when the lower boom is operated up or down. This adjustment works best with two technicians when adjusting the compensation. One person operates the unit from the platform while the second person observes the boom orientation and adjusts the compensation.
- Page 4 Tech Tips Step 3 Loosen the jam nut and adjust the pressure compensators on the upper and lower boom sections so that two (2) threads are showing on the adjustment plug. Tighten the jam nut adjustment. Tech-Tip 80 Rev. B Released: 7/11/2019...
- Page 5 Tech Tips Step 4 Loosen the upper boom pilot fitting and rotate it slightly to gain access to the handle travel adjustment. Be careful not to interfere with the lower boom control handle travel. Retighten the fitting. Escaping fluid under pressure can penetrate skin causing serious injury.
- Page 6 Tech Tips Step 6 Position the booms slightly out of the boom rest. Using demand throttle or high throttle on a 2 speed system, operate the lower boom at full speed through the full travel of the boom. Step 7 Observe the position of the upper boom after Step 6.
- Page 7 Tech Tips If the upper boom is above horizontal: Slow the upper boom down by turning the compensator adjustment counter-clockwise 1/2 of a turn. Do not adjust the upper boom speed down more than twice. If the upper boom has been slowed down twice, then adjust the lower boom 1/2 of a turn clockwise to speed up the lower boom.
- Page 8 Tech Tips Step 8 Position the unit with the lower boom fully extended, the upper boom horizontal, and high throttle (demand or two-speed) engaged. Operate the lower boom at full speed through the full travel of the boom until either boom is just out of the boom rest.
- Page 9 Tech Tips Note: Adjust so when the lower boom gets to the rest the upper boom is 1-2 feet out of the rest. Adjust lower boom up first as lower boom down will change. Verify that the upper boom down works from the lower controls before operating from the platform.
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