Emerson Bettis GTD Series, Service Instructions Manual

Page: 23 / 37

Service Instructions
133893 Rev. C
January 2013
20
Section 4: Module Removal and Installation
Module Removal and Installation
4�2 GTO Oil Cylinder Installation
NOTE:
Review section 3.1 General Reassembly before proceeding with GTO Hydraulic Power
Module Installation.
4.2.1 The setting of stop screw (7-180) should be checked and setting recorded before
stop screws are loosened or removed.
NOTE:
Stop screw (7–180) will be removed later in this procedure.
4.2.2 Loosen or remove the jam nut (7-190) from stop screw (7-180).
4.2.3 Remove stop screw (7-180) from outer end cap (7-80).
4.2.4 Check to verify that o-ring seal (8-90) is properly seated in its seal groove located
on the housing side of inner end cap (7-10).
4.2.5 Using lifting equipment move the oil cylinder up to housing (1-10) and align piston
rod assembly (7-40) with guide block assembly (1-30).
4.2.6 Using a male square drive extension, go through the vacant stop screw hole
located in outer end cap (7-80) and screw piston rod assembly (7-40) into guide
block assembly (1-30).
WARNING: DO NOT CROSS-THREAD PISTON ROD
When connecting (screwing) piston rod assembly into guide block assembly (1-30) make
certain that the piston rod assembly and guide block assembly threads do not cross-thread.
4.2.7 Torque tighten piston rod assembly (7-40) until a final lubricated torque, as listed
in the following table, has been achieved.
Table 5� Piston Rod Assembly Torque Information
Housing
Model
TORQUE (±5%)
Housing
Model
TORQUE (±5%)
FT-lb N-m FT-lb N-m
GTD01 131 178 GTD7 240 325
GTD2 196 266 GTD8 240 325
GTD3 240 325 GTD10 240 325
GTD4 240 325 GTD13 240 325
GTD5 240 325