TM 55-1930-209-14&P-6
b.
Check alignment as follows:
(1)
Place scale at top and side of coupling to check alignment of both halves.
(2)
Use a 0.005-inch feeler gauge under scale to check final parallel and angular alignment.
(3)
Run coupling to see if it separates or tends to move. Recheck angular alignment.
(4)
Tighten set screws.
4-11.4 Gear pump repair
4-11.4.1 Removal. Remove gear pump.
4-11.4.2 Disassembly, repair, and assembly. Disassemble, repair, and assemble gear pump as given in Appendix B,
manufacturer's service manual/instructions. Replace parts using repair parts listed in TM 55-1930-209-14&P-18.
4-11.4.3 Installation. Install gear pump.
4-11.5 Motor/heater control panel repair. Repair motor/heater control panel using repair parts listed in TM 55-1930-
209-14&P-18.
4-11.6 Counterbalance valve cartridge replacement. Screw out old cartridge and screw in new cartridge. Wipe clean.
4-12 Levelwind repair.
4-12.1 Levelwind coupling replacement
4-12.1.1 Removal. Perform procedure in paragraph 4-11.3.1.
4-12.1.2 Installation. Perform procedure in paragraph 4-11.3.2.
4-12.2 Levelwind hydraulic motor repair
4-12.2.1 Removal
a.
Disconnect hoses.
b.
Remove motor.
4-12.2.2 Disassembly, inspection, repair, and assembly. Disassemble, inspect, repair, and assemble
levelwind motor as given in Appendix B, manufacturer's service manual/instructions.
4-12.2.3 Installation
a.
Install motor.
b.
Connect hoses. When viewed from output end of coupling, connect hose to pressure port 'A' for coupling
clockwise rotation and-port 'B" for counterclockwise rotation.
c.
Check for normal operation and leaks.
4-12.3 Levelwind primary reduction gear box repair. Repair as given in Appendix 28A in manufacture's service
manual/instructions in Appendix B. Repair using repair parts listed in TM 55-1930-209-14 &P-18.
4-12.4 Levelwlnd secondary reduction gear box repair. Repair as given in Appendix 28B in manufacturer’s service
manual/instructions in Appendix B. Repair using repair parts listed in TM 55-1930-209-14&P-18.
4-12.5 Swivel Joint seal replacement. Replace seals as given in Appendix B, manufacturer's service
manual/instructions.
4-13 Valve replacement. Replace or repack worn or damaged valves according to TM 55-503
4-10
