March 2016Table of ContentsPart No. 123701 GTH-1048 • GTH-1056 ixChecklist D Procedures ..................................................................................... 39D-1 Inspect the Forks ........................................................................................... 39D-2 Perform Transmission Maintenance - Dana Models ..................................... 39D-3 Replace Hydraulic Tank Return Filter Element ............................................. 40D-4 Perform Axle Maintenance ............................................................................ 40D-5 Perform Engine Maintenance - Perkins Models ............................................ 41Checklist E Procedures ..................................................................................... 42E-1 Test or Replace the Hydraulic Oil .................................................................. 42E-2 Perform Engine Maintenance - John Deere Models ..................................... 43E-3 Perform Engine Maintenance - Perkins Models ............................................ 43E-4 Perform Engine Maintenance - Perkins Models ............................................ 44E-5 Perform Engine Maintenance - John Deere Models ..................................... 44E-6 Perform Engine Maintenance - Perkins Models ............................................ 45Section 4 Repair Procedures ............................................................................................. 46Introduction ........................................................................................................... 46Boom Components ............................................................................................ 481-1 Boom Proximity Switch .................................................................................. 48How to Test a Proximity Switch....................................................................... 48How to Adjust the Boom Angle Proximity Switch ............................................ 49How to Adjust the Boom Extend Proximity Switch .......................................... 491-2 Boom .............................................................................................................. 50How to Replace the Boom Wear Pads ........................................................... 50How to Remove the Lifting Fork Frame .......................................................... 50How to Remove the Cable Bridge Assembly , GTH-1056 .............................. 51How to Replace the Retraction Chain ............................................................. 52How to Replace the Extension Chains ............................................................ 55How to Remove the Boom .............................................................................. 57How to Disassemble the Boom - GTH-1048 ................................................... 59How to Disassemble the Boom - GTH-1056 ................................................... 611-3 Boom Lift Cylinder .......................................................................................... 64Courtesy of Crane.Market
