freightliner C SB FS65, Руководство по обслуживанию

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In a diagonal pattern, tighten all 5/8–18 U-bolt nuts
205 lbf·ft (278 N·m); tighten all 3/4–16 U-bolt nuts
300 lbf·ft (407 N·m); and tighten all 7/8–14 U-bolt
nuts 460 lbf·f (624 N·m).
32–04 Spring Bracket Fastener
Torque Checking,
Freightliner Spring
(Rear)
CAUTION
Continued use with loose fasteners could result in
bracket and frame damage.
Torque the fasteners that attach the forward and rear
spring brackets and equalizer brackets to the frame
rail. Tighten 1/2–13 locknuts with hardened washers
85 lbf·ft (115 N·m). Tighten 5/8–11 locknuts with
hardened washers 170 lbf·ft (230 N·m). Tighten
3/4–10 locknuts with hardened washers 305 lbf·ft
(415 N·m).
See Group 00 for other frame fastener torques.
32–05 Fastener Torque
Checking, Freightliner
AirLiner
Tighten all suspension fasteners to the torque values
in
Table 1 . Also, tighten all suspension air line fittings
and air lines.
Description Size
Torque:
lbf·ft (N·m)
Leveling Valve Adjustment Nut 1/4–20 5 (7)
Leveling Valve Mounting Bolt
Nuts 5/16–18 14 (19)
Air Spring Upper Mounting
Locknuts 3/4–16 45 (61)
1/2–13 23 (31)
Air Spring Lower Mounting
Locknuts 1/2–13 55 (75)
Leaf Spring Mounting Eye Bolt
Locknuts 3/4–16 270 (365)
Shock Absorber Upper Bracket
Mounting Locknuts 5/8–11 125 (170)
Description Size
Torque:
lbf·ft (N·m)
Air Spring Upper Mounting
Bracket 5/8–11 125 (170)
Spring Hanger Mounting
Locknuts 3/4–10 210 (285)
Lateral Control Rod Nut 5/8–11 136 (185)
Table 1, Torque Values for Freightliner AirLiner
Suspensions
32–06 Component Clearance
Checking, Freightliner
AirLiner
Check that the air line support brackets are posi-
tioned so that air lines do not rub against anything.
Reposition any configurations that could contact and
result in friction and wear. There must be at least 1
inch (25 mm) clearance around the rubber air spring
when inflated. If the clearance is less than 1 inch (25
mm), relocate the obstructing parts.
CAUTION
Failure to relocate obstructing parts could result
in damage to the air spring.
32–07 Component Inspecting
and Operation Checking,
Freightliner AirLiner
WARNING
Inspect the components and check their operation
as described below. Failure to perform these in-
spections and checks could result in separation of
worn suspension components and loss of vehicle
control, possibly causing personal injury and
property damage.
1. Chock the front tires. Raise the rear of the ve-
hicle so that the tires just clear the ground and
so that the suspension is fully extended. Place
safety stands under the vehicle frame.
2. Squeeze all air springs to check for complete
deflation. If any air springs remain partially or
Suspension
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School Bus Chassis Maintenance Manual, March 2003
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