Top Drives 151-300
PB151 – ALERT – Guide Runner Mounting Fasteners and Shims
PB152 – Electrical Enclosure Door
PB156 – Guide Runner Shims Upgrade
PB157 – Link Support Wear Limits
PB158 – ALERT – Hydraulic Hose Clamp Secondary Retention_v2
PB159 – ALERT – BUW Foot Stop Plate_Inspection Needed
PB160 – ALERT – Blower Motor Fan Cover Secondary Retention
PB161 – Main Bearing Replacement
PB162 – Lifting Configuration_Manual Update_v2
PB163 – Harpoon_Interference_with_Traveling Block
PB164 – Hydraulic_and_Electric_Loop_Pins
PB166 – ALERT – TD_Guard Catch Alert
PB167 – ALERT – TD Frame Inspection
PB168 – BUW_Nord-Lock_Washers_Kit
PB169 – Blower_Motor_U-Bolt_Support_v2.0
PB170 – Top_Drive_Blower_Upgrade_v2.0
PB171 – Washpipe_Assembly_Upgrade_Kit
PB172 – ALERT – Guide_Frame_Wear_Pads
PB173 – BUW_Nord-Lock_Washers_175-275T
PB174 – ALERT – TD_Frame_Base_Inspection
PB175 – ALERT – Block_Guide_Pin_Inspection
PB176 – ALERT – Load_Binder_Securement
PB177 – ALERT – Elevator_Clamp_Secondary_Securement
PB179 – ALERT -Steel_Stabbing_Bell
PB180 – BUW Die Block Upgrade (v2)
PB182 – TDSU_PLC_Comms_Obsolescence
PB183 – ALERT – Inspect_die_blocks
PB184 – ALERT -Top Drive Service Loop
PB185 – Safety_Securement_for_J-Box_Door_v2
PB186 – Adding Safety Securement to Steel Stabbing Bell Adjuster Plate
PB187 – ALERT – Using Non-OEM Parts in Load Path Danger
PB188 – TESCO Grabber Configurator Options
PB189 – Improved Oil Filter Securement and Protection
PB190 – Improved Encoder Support Bracket Available
PB191 – ALERT – Blower Motor Securement Upgrade
PB192 – ALERT – Inspection for Guard Access Door
PB193 – ALERT – Lower Well Control Valve (LWCV) Inspection
PB194 – ALERT – Ensure TD Aligned With WC
PB196 – ALERT – Gearcase Drain Issue
PB198 – VFD Safety Relay Wiring
PB201 – ALERT – Air Cooler Mounting Bracket
PB202 – EXI TD Lubrication Oil Cooler Bracket Upgrade
PB203 – LWCV_Cylinder_Sec_Ret_v1.0
PB204 – Improved_gearcase_drain_v 1.0
PB205 – VFD_Discontinuation_ v1.0
PB206 – ALERT – Back-Up Wrench (BUW) Gripper Inspection
PB207 – ALERT – Junction Box to 600HP Motor Fasteners
PB208 – ALERT – Torque Arrest System
PB209 – Brake Assembly Upgrade
PB210 -ESI HYDAC Valves Discontinuation
PB211 – ALERT – 275T Unintended Elevator Closing
PB213 – ALERT – Limit Switch Guard
PB214 Obsolete TD Blower Press
PB215 – TD Gear Oil Filter Change
PB216 – ALERT – TD Guide Runner Shims
PB217 – TD Lube Oil Requirements
PB218 – ALERT – BUW Gripper Unintended Movement
PB219 – Handler Rotate Pinion Guard Upgrade
PB221 – Blower Support Arm Install Procedure
PB222 – LWCV Anti-Rotation Bracket Securement Upgrade
PB223 – CDS Anti-Rotation Bracket
PB224 – LWCV Actuator Pinion Retainer
PB225 – LWCV Actuator Bearing Greasing
PB226 – Rotary Manifold Pressure Pads Securement
PB227 – Top Drive Blower Upgrade
PB229 – BUW Gripper Cylinder Manifold Counterbalance
PB230 – BUW Gripper Die Retainer Plate
PB231 – Encoder Junction Box Safety Securement
PB232 – Broken Counterbalance Cylinder Cap Screw
PB233 – Broken Guide Dolly Pin Retainer
PB234 – Portable Torque Guide Updates
PB235 – Top Drive Steel Stabbing Bell Obsolescence
PB236 – HMI Top Drive Adjustable Extend Arm Upgrade
PB237 – Recommended Make-Up Torques and Saver Subs Limitations for T-Series
PB238 – Polymer Stabbing Bell Safety Securement
PB239 – ALERT – Die Block Inspection
PB240 – MICO Brake Caliper Piston Assembly Inspection
PB241 – ALERT – TD Electrical Service Loop Clamp Securement
PB242 – Polymer Stabbing Bell Improvement
PB243 – ALERT – Die Block Inspection
PB244 – ALERT – Tensioning Cylinder Incident
PB245 – Top Drive Model C500-681 Torque Curve Correction
PB246 – Top Drive Guide Runner Wear Inspection
PB247 – Top Drive Harpoon Latch Inspection
PB248 – Top Drive T500 Gearbox upgrade