Assembly Instructions For 37° (Jic) Flare Fittings - JLG 400S Service And Maintenance Manual

SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS
Assembly Instructions for 37° (JIC) Flare Fittings
1. Inspect the flare for obvious visual squareness and con-
centricity issues with the tube OD. Ensure surface is
smooth, free of rust, weld and brazing splatter, splits,
dirt, foreign matter, or burrs. If necessary replace fitting
or adapter.
DO NOT FORCE A MISALIGNED OR SHORT HOSE/TUBE INTO ALIGNMENT. IT
PUTS UNDESIRABLE STRAIN ONTO THE JOINT EVENTUALLY LEADING TO LEAK-
AGE.
2. Align tube to fitting and start threads by hand.
THE TORQUE METHOD SHOULD NOT BE USED ON LUBRICATED OR OILY FIT-
TINGS. NO LUBRICATION OR SEALANT IS REQUIRED. THE LUBRICATION
WOULD CAUSE INCREASED CLAMPING FORCE AND CAUSE FITTING DAMAGE.
5-8
3. Torque assembly to value listed in Table 5-3, 37° Flare
(JIC)Thread - Steel or Table 5-4, 37° Flare (JIC)Thread -
Aluminum/Brass while using the Double Wrench
Method per Double Wrench Method. Refer to FFWR and
TFFT Methods for procedure requirements if using the
FFWR method.
NOTE: Torque values provided in Table Table 5-3, 37° Flare
(JIC)Thread - Steel and Table 5-4, 37° Flare (JIC)Thread -
Aluminum/Brass are segregated based on the material
configuration of the connection.
ALUMINUM/BRASS FITTINGS OR ALUMINUM/BRASS MATING
COMPONENTS' indicate either the following material configu-
rations:
• STEEL fittings with ALUMINUM or BRASS mating compo-
nents
• ALUMINUM or BRASS fittings with STEEL mating compo-
nents
• ALUMINUM or BRASS fittings with ALUMINUM or BRASS
mating components.
3121671