18000 SERIVCE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
Manitowoc Published 12-05-17, Control # 035-23 2-15
SAE Flare Connection
1. Tighten nut finger tight until sealing surfaces touch.
2. Mark a line (use felt pen or marker) on adapter and
extend it onto connector nut (Figure 2-13
, View A).
3. Using wrenches, tighten connector nut the number of
flats shown in (Figure 2-13
, View B).
4. Misalignment of marks will show how much nut has
been tightened, and best of all that it has been tightened.
Table 2-8 SAE 37°Flare Tightening
Table 2-9 SAE 37° Flare Leakage
Connector Nut
Size
inch across flats
Fitting Size
Adapter Flats
to Rotate
9/16 -04 2-1/2
5/8 -05 2-1/2
11/16 -06 2
7/8 -08 2
1 -10 1-1/2 ā 2
1-1/4 -12 1
1-1/2 -16 3/4 ā 1
2 -20 3/4 ā 1
2-1/4 -24 1/2 ā 3/4
Turn connector nut required
number of flats (Table 2-8
)
View B
S108
Adapter
Line
Connector
Nut
View A
Causes Cures
Joint loose. Tighten properly.
Sealing surfaces dirty. Clean.
Sealing surfaces not smooth;
scratched or gouged.
Replace faulty parts.
Sealing surfaces cracked. Replace faulty parts.
SAE 45° parts used with
SAE 37° parts.
Use only SAE 37° parts.