Hours Min.Procedure: Table: 011GTH-4013 SXGTH-4017 SXMay 2008 Section 7 - Repair ProceduresDocument 57.4403.4200 GTH-4013 SX GTH-4017 SX 31TABLE 011200406016100157060253012,510Thickn. 1÷2 mmif neededADJUSTING THE PLAY WITH SHIMSIf the play between the boom sections is too great (2mm or more), proceed in shimming the guide padsof the boom sections.Usually, the guide pads subject to premature wearare: front bottom pads of the first and second boomsection rear top pads of the second and third boomsectionProceed as follows:1 Lower the boom to the ground and ensure thetelescope is fully retracted2 With a thickness gauge, check the play of allpads.After adjustment, the minimum play in thenarrowest point must be: 0,5÷1 mm3 Measure the thickness of the slide pads. Thevalue of the bottom pads of the fixed section andof the top pads of the telescope must be at least13 mm. For the remaining pads, the minimumthickness must never be less than 9 mm4 If the thickness reaches the minimum value, renewthe pads before adjusting the residual play withsome shims5 Remove the fixing screws from the pads andposition as many shims as necessary to reachthe normal thickness valueRenewing the slide pads of the telescopicboom GTH 4013 SXStandard tools-1 301Courtesy of Crane.Market
