REV BJune 2005 Section 4 • Repair ProceduresPart No. 65162 TMZ-50/30 4 - 15PRIMARY BOOM COMPONENTS4-2Primary BoomHow toShim the Primary Boom1 Extend the boom until the wear pads areaccessible.2 Loosen the wear pad mounting fasteners.3 Install the new shims under the wear pad toobtain zero clearance and zero drag.4 Securely tighten the mounting fasteners. Do notover tighten.5 Extend and retract the boom through an entirecycle. Check for tight spots that could causebinding or scraping.Always maintain squarenessbetween the outer and innerboom tubes.How toRemove the Primary BoomThis procedure requires specificrepair skills, lifting equipment anda suitable workshop. Attemptingthis procedure without these skillsand tools could result in death orserious injury and significantcomponent damage. Dealerservice is required.Follow the disassembly steps to the point requiredto complete the repair. Then re-assemble thesecondary boom by following the disassemblysteps in reverse order.When removing a hose assemblyor fitting, the O-ring on the fittingand/or hose end must be replacedand then torqued to specificationduring installation. Refer toSection 2, Hydraulic Hose andFitting Torque Specifications.1 Remove the jib. See 3-1, How to Remove theJib Boom.2 Remove the cable track. See 4-1, How toRemove the Cable Track.3 Remove the supports securing the cables to thebottom of the primary boom. Pull the cablesthrough the primary boom and lay them off tothe side of the mid pivot.Component damage hazard.Cables and hoses can bedamaged if they are kinked orpinched.For ease of assembly, pay closeattention to how the cables arerouted when pulling the cables tothe mid pivot.800-610-4101ActionRental.com
