Doc No: OMM50001254
Rev: A Page 37 of 47
Subject to contractual terms and conditions to the contrary, this document and all the information contained herein are the confidential and exclusive
property of FMC Technologies, and may not be reproduced, d
isclosed, or made public in any manner prior to express written authorization by FMC.
10.0 Fastener Torque Requirements
NOTICE: No pump service procedure is complete without insuring that the fasteners
have been properly torqued. Failure to properly tighten the pump bolts could cause the
pump to leak or possibly allow the pump to fail. Always use a calibrated torque wrench
during the installation of all critical fasteners listed in Table 5 below. Values are in foot-
pounds (Ft-lb) and Newton meters (N-m). Typical sizes are shown in Table 5.
Table 5: Torque Requirements
Item Component A04/I04
Power End
No. Description Size Ft-lbs (N-m)
1 Connecting Rod Bolts 0.250 7 9
2 Piston Assy Bolt 0.313 15 20
3 Back Cover Bolts 0.375 15 20
Fluid End
4 Fluid End Attaching Bolts 0.375 25 34
5 Valve Cover Clamp Bolt 0.500 60 81
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