CYLINDER GP 4T4248 - Caterpillar

(1) Distance nut must be turned backwards and kept in position after installation of spring ... 1.5 0.8 mm (.06 .03 in)(2) 3P1459 and 2Y6914 Springs:Assembled length for installation ... 508.0 mm (20.00 in)Length after installation ... 514.4 mm (20.25 in)Force of spring after installation ... 126 kN (13.9 ton)Free length ... 635.0 11.2 mm (25.00 0.44 in)Outside diameter ... 222.3 6.4 mm (8.75 .25 in)(3) Torque for fill valve and the relief valve ... 35 7 N m (25 5 lb ft)(4) Torque for bolts ... 55 7 N m (40 5 lb ft)(5) Use shims as required (on each side) until dimension (A), between frame and guide plate, is ... 0.8 0.5 mm (.03 .02 in)(6) End play of shaft ... 0.28 to 0.74 mm (.011 to .029 in)Maximum permissible end play ... 1.14 mm (.045 in)Maximum permissible amount shaft can be bent ... 0.13 mm (.005 in)(7) Clearance between shaft and bearing ... 0.36 to 0.46 mm (.014 to .018 in)Maximum permissible clearance ... 1.27 mm (.050 in)(8) Use shims (on each side) to make the idler shaft parallel to the roller shaft and to keep the clearance between the plate and the yoke to ... 0.76 to 1.91 mm (.030 to .075 in)(9) Torque for lock pin bolt:Tighten to a torque of ... 55 7 N m (40 5 lb ft)Then hit lock pin with a hammer and torque bolt again to ... 70 14 N m (50 10 lb ft)(10) Torque for lubrication plug ... 170 20 N m (125 15 lb ft)(11) Diameter of the shaft ... 63.35 0.03 mm (2.494 .001 in)(12) Rubber toric seals and all surfaces in contact with them must be clean and dry at assembly. Put a thin layer of oil on the surfaces of the metal seals that are in contact just before installation. Put lubricant on all other seals at assembly.