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Handler Lock Sensor Improvement
Canrig has discontinued the use of the current handler lock sensor assembly (AY10484-X) which is
used on 1250AC and 1275AC top drives. The handler lock sensor has been replaced with a new
handler lock sensor with a simplified design and improved securement.
Affected Models
Top drive models: 1250AC-681, 1275AC-681, 1250AC-865, 1275AC-865.
Replacement Information
Contact RIGLINE 24/7™ to order the new handler lock sensor assembly. Install the new sensor on
the handler lock assembly following the procedure described below.
Table 1: Handler Lock Sensor Assembly Options
Old Handler
New Handler
Lock Sensor
Lock Sensor
AY10484
AY24336
AY10484-1
AY24336-1
RIGLINE 24/7™: 866.433.4345 | International: +1 281.774.5649 | E-mail:
Document ID 19-048 Rev 2 | Copyright © 2021 Nabors Drilling Technologies USA, Inc. All rights reserved.
Model: See affected models
Serial #: N/A
Handler Lock Sensor Description
Handler Lock Sensor Assy, CENELEC
Handler Lock Sensor Assy, NEC/CSA
1 of 6
Product Bulletin # TDS-199 Rev 2
Sensor
P/N
N11521
N11522
support@rigline247.com
Sep. 29, 2021
Bracket
P/N
DT34906
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Related Manuals for Canrig 1250AC-681
Summary of Contents for Canrig 1250AC-681
- Page 1 Product Bulletin # TDS-199 Rev 2 Handler Lock Sensor Improvement Canrig has discontinued the use of the current handler lock sensor assembly (AY10484-X) which is used on 1250AC and 1275AC top drives. The handler lock sensor has been replaced with a new handler lock sensor with a simplified design and improved securement.
- Page 2 Model: See affected models Sep. 29, 2021 Serial #: N/A Original Handler Lock Assembly Handler Rotate Assembly Handler Lock Cylinder Handler Lock Sensor J-box Handler Lock Sensor Figure 1: Original Handler Lock Sensor Assembly RIGLINE 24/7™: 866.433.4345 | International: +1 281.774.5649 | E-mail: support@rigline247.com Document ID 19-048 v Rev 2 | Copyright ©...
- Page 3 Model: See affected models Sep. 29, 2021 Serial #: N/A Procedure Follow steps below to remove existing handler lock sensor and install new handler lock sensor. Remove Existing Handler Lock Sensor Assembly 1. Ensure handler lock is engaged and in the lock position before beginning. 2.
- Page 4 2. Install the handler lock sensor bracket with two 1/2-13UNC x 1" hex head bolts and two 1/2" Nord-Lock washers. See Figure 3. 3. Torque bolts to 99 ft-lbs per Canrig Engineering Specification ENG 725. Mounting hardware Figure 3: Mounting Bracket Installation 4.
- Page 5 Model: See affected models Sep. 29, 2021 Serial #: N/A 6. Align sensor to sensor target. Adjust the sensor target to a minimum gap of 0.03" and a maximum gap of 0.048". Do not adjust the sensor. See Figure 5. Sensor .03 [1] MIN GAP .048 [1.2] MAX GAP...
- Page 6 Model: See affected models Sep. 29, 2021 Serial #: N/A 11. To connect the new sensor and cable, refer to Subsection 6E of the Top Drive Parts Manual. This section contains the schematics that show the correct wiring of the sensor. Contact RIGLINE 24/7™...