Assembly Instructions For American Standard Pipe Thread Tapered Connections - JLG G5-18A Service Manual

General Information and Specifications
2.8.2 Assembly Instructions for American
Standard Pipe Thread Tapered
Connections
1. Inspect components to ensure male and female port
threads are free of rust, splits, dirt, foreign matter, or
burrs.
2. Apply a suitable thread sealant, such as Loctite 567, to
the male pipe threads if not already applied. Ensure the
first 1 to 2 threads are uncovered to prevent system
contamination.
3. Assemble connection hand tight.
4. Mark fittings, male and female
NOTICE
Over tightening may cause deformation of the pipe
fitting and damage to the joining fitting, flange or
component may occur.
Material
STEEL, ALUMINUM, OR
BRASS FITTINGS
WITH STEEL,
ALUMINUM, OR
BRASS
MATING
COMPONENTS
NOTE:
2-24
TYPE/FITTING IDENTIFICATION
Thread Size
Dash Size
(UNF)
2 1/8 - 27
4 1/4 - 18
6 3/8 - 18
8 1/2 - 14
12 3/4 - 14
16 1 - 11 1/2
20 1 1/4 - 11 1/2
24 1 1/2 - 11 1/2
32 2 - 11 1/2
* ØA thread dimension for reference only.
** Refer to Section 2.8.15, "FFWR and TFFT Methods. " , for TFFT procedure requirements.
NOTICE
Never back off (loosen) pipe threaded connectors to
achieve alignment. Meet the minimum required turns
and use the last turn for alignment.
5. Rotate male fitting the number of turns as per below
mentioned table. Refer to Section 2.8.15, "FFWR and
TFFT Methods. " , for procedure.
Note: TFFT values provided in below mentioned table are
applicable for the following material configurations:
a. Steel fittings with steel mating components
b. Steel fittings with aluminum or brass mating
components
c. Aluminum or brass fittings with steel mating
components
d. Aluminum or brass fittings with aluminum or brass
mating components.
a. NPTF Pipe Thread
MAE9110
ØA*
(mm)
(in)
0.40 10.24
0.54 13.61
0.67 17.05
0.84 21.22
1.05 26.56
1.31 33.22
1.65 41.98
1.89 48.05
2.37 60.09
Turns From Finger Tight
(TFFT)**
2 to 3
2 to 3
2 to 3
2 to 3
2 to 3
1.5 to 2.5
1.5 to 2.5
1.5 to 2.5
1.5 to 2.5
G5-18A, 2505