New Holland D150C Service Manual page 31

Installation of tapered thread connectors
1. Remove protective connector caps only immediately
prior to assembly.
NOTICE: Pre-applied sealants, such as L
503™ V -S ® and/or powdered PTFE are the
IBRA EAL
preferred sealants for tapered thread connectors.
Non-preferred sealant types include PTFE tape, paste
sealants, and anaerobic liquids.
paste sealants may contribute to hydraulic system
contamination.
2. Inspect the components to ensure that the male and
female port threads and sealing surfaces are free of
burrs, nicks, and scratches, or any foreign material.
Do not use if impurities are found.
3. Apply the sealant/lubricant to the male pipe threads,
if not pre-applied. The first one or two threads should
not have sealant applied to them to avoid system con-
tamination.
NOTICE: If you require a specific orientation of a
shaped connector, take into consideration that final
position before you proceed with the next steps.
Never back off (loosen) tapered thread connectors to
achieve alignment you will increase the possibility of
leaks.
4. Screw the connector into the port to the finger tight
position.
5. Use a wrench to tighten the connector. See the torque
table for the proper number of Turns From Finger Tight
(TFFT).
NOTE: Normally, the total number of threads engaged
should be between 3.5 and 6. If more than 6 threads
are engaged, this may indicated an over-tightened
connection. If fewer than 3.5 threads are engaged,
this may indicate an under-tightened connection. For
an over-tightened connection, check both threads and
replace the part which has out-of-tolerance threads. If
the connection is under-tightened, it is acceptable to
tighten it further, but no more than one full turn.
INTRODUCTION
®
OCTITE
PTFE tape and
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