1-10 03-20-2019 Control # 613-06
INTRODUCTION NBT30H-2 SERVICE MANUAL
1. Inspect both mating parts for burrs, nicks, scratches, or
foreign particles.
2. Lubricate O-ring with a light coat of clean oil.
3. Back off locknut as far as possible (A).
4. Screw the fitting into port by hand until the backup
washer contacts the face of the port and is pushed all the
way towards the locknut (C).
5. To orientate the fitting, unscrew the fitting the required
amount, but not more than one full turn.
6. Hold the fitting in the desired position and tighten the nut
(D) following the F.F.F.T. method starting with step 4.
Nonadjustable Straight Thread O-ring Fitting: Fitting
to Port
Refer to Table 1-4 for the following procedure.
1. Make sure both threads and sealing surfaces are free of
burrs, nicks, scratches or any foreign particles.
2. Lubricate O-ring with clean oil (Figure 1-6).
3. Turn fitting until finger tight.
4. Using the assembly torque method, tighten to given
torque for size from Table 1-4.
Table 1-4: Straight Thread Fittings
FIGURE 1-5
Adjustable Fitting to Port
a0030
BACK OFF
NUT
FIGURE 1-6
Non-Adjustable Fitting to Port
a0032
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