©2008-2017 McCoy Global
Manual № TM12012
80-0420-23 POWER TONG
Section 5
Page 5.8
Maintenance
5.7 ASSEMBLY PRACTICES
Although the assembly of McCoy hydraulic power tongs is straightforward and can be accomplished without the use of
special tools, the instructions in this subsection are presented as a guide only and are similar to the assembly sequence
our technician would use while assembling the tong in our plant.
NOTE ON INSTALLATION PRACTICES: Ensure all bearings are liberally greased before installing over a shaft or
into gears or bearing caps. When inserting a shaft through a support roller assembly ensure shaft is greased.
Also ensure all metal-to-metal contact in the gear train is adequately greased. Please refer to the relevant
exploded diagrams in Section 7 when assembling components in this power tong and backup.
!
WARNING
ALL FASTENERS USED DURING REASSEMBLY OF LOAD-BEARING COMPONENTS (CHAIN SLINGS,
RIGID SLINGS, BACKUP LEGS) MUST BE TIGHTENED TO THE CORRECT TORQUE. THREADED
FASTENERS USED IN LOAD-BEARING DEVICES MUST BE SECURED WITH RED LOCTITE™.
REPLACEMENT FASTENER (BOLTS, NUTS, CAP SCREWS, MACHINE SCREWS, ETC.) USED DURING
MAINTENANCE OR OVERHAUL MUST BE GRADE 8 OR EQUIVALENT UNLESS OTHERWISE SPECIFIED.
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