This set of instructions outlines the procedures for inspecting and disassembling the IBOP actuator cylinder and yoke.

Once a year, or every 3,000 operating hours, Varco recommends performing a Magnetic Particle Inspection (MPI) of the exposed surfaces of all load carrying components to reveal any fatigue or crack indications.

1.Ensure that the pipehandler clamp cylinder is unclamped, the counterbalance cylinders are connected to the hook, the bail is resting in the hook, and the system power is OFF 2.Check to see that the hydrulic fluid level is at the middle of the sight glass 3.
If the fluid is low, add hydraulic fluid (see the Lubrication and Maintenance section of this manual 4.
Check the red “pop-up” alarm on the hydraulic filter for contamination 5.
Replace the filter (P/N 114416-1) if the indicator has popped up 6.
Use care to prevent contamination from entering the hydraulic system during maintenance activities

TDS-9/11A top drive motor Adopt the most commonly used squirrel cage structure