JLG E450A, Service And Maintenance Manual, Page: 174 / 480

SECTION 5 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
5-16 3121714
Assembly Instructions for DIN 24° Flare Bite Type
Fittings (MBTL and MBTS)
A NON-SQUARE TUBE END CAN CAUSE IMPROPERLY SEATED FITTINGS AND
LEAKAGE.
1. Inspect the components to ensure free of contamina-
tion, external damage, rust, splits, dirt, foreign matter, or
burrs. Ensure tube end is visibly square. If necessary
replace fitting or tube.
2. Lubricate thread and cone of fitting body or hardened
pre-assembly tool, as well as the progressive ring and
nut threads.
3. Slip nut and progressive ring over tube, assuring that
they are in the proper orientation.
4. Push the tube end into the coupling body.
5. Slide collet into position and tighten until finger tight.
Mark nut and tube in the finger-tight position. Tighten
nut to the number of flats listed in Table 5-9, DIN 24°
Cone (MBTL & MBTS) while using the Double Wrench
Method. The tube must not turn with the nut.