PREVOST LE MIRAGE XLII BUS SHELLS User Manual

Section 12: BRAKE AND AIR SYSTEM
PA1553
29
30. FITTING TIGHTENING TORQUES
45
ο
Flare and Inverted Flare: Tighten assembly
with a wrench until a solid feeling is encoun-
tered. From that point, tighten 1/6 turn (Fig. 47).
FIGURE 47: HOSE FITTINGS 12053
Compression: Tighten nut by hand (Fig. 48).
From that point, tighten using a wrench the
number of turns indicated in the chart hereafter.
Fitting
size
Pipe
diameter
(inches)
Number of additional
turns required following
hand tightening
2 1/8 1 ¼
3 3/16 1 ¼
4 1/4 1 ¼
5 5/16 1 ¾
6 3/8 2 ¼
8 1/2 2 ¼
10 5/8 2 ¼
12 3/4 2 ¼
16 1 2 ¼
FIGURE 48: HOSE FITTING 12054
NTA-Type Plastic Tubing: Hand tighten nut
(Fig. 49). From that point, tighten using a wrench
the number of turns indicated in the following
chart.
Tubing diameter
(inches)
Number of additional turns
required following hand
tightening
1/4 3
3/8 to 1/2 4
5/8 to 3/4 3 ½
FIGURE 49: HOSE FITTING 12055
AB-Type Copper Piping: Hand tighten nut
(Fig. 50). From that point, tighten with a wrench
the number of turns indicated in the following
chart.
Piping diameter
(inches)
Number of additional turns
required following hand
tightening
1/4, 3/8, 1/2 2
5/8, 3/4 3
FIGURE 50: HOSE FITTING 12056
Pipe Tightening: All connections must be hand
tightened. From that point, tighten a minimum of
2 ½ additional turns.
NOTE
Use Locktite (Prévost number 680098) pipe
sealant to seal pipe thread.

PREVOST LE MIRAGE XLII BUS SHELLS Specifications

General

Brand	PREVOST
Model	LE MIRAGE XLII BUS SHELLS
Category	Buses
Language	English