JLG 530LRT, Service And Maintenance Manual

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SECTION 4 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
3121781 4-15
Assembly Instructions for 45° SAE 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.
3. Tighten fitting by hand until hand tight.
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.
Torque fitting to value listed in Table 4-5, 45° Flare (SAE) - Steel
and Table 4-6, 45° Flare (SAE) - Aluminum/Brass while using
the Double Wrench Method outlined in this section. Refer to
FFWR and TFFT Methods for procedure requirements if using
the TFFT method.
NOTE: Torque values provided in Table 4-5, 45° Flare (SAE) - Steel
and Table 4-6, 45° Flare (SAE) - Aluminum/Brass are segre-
gated based on the material configuration of the connec-
tion.
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.