AirTek AT90 Spezifikationen Seite 113

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AIRTEK for Blue Bird All American Buses – 14.6K
HENDRICKSON RECOMMENDED TORQUE SPECIFICATIONS
NO. COMPONENT QTY. SIZE
TORQUE VALUE
(in foot pounds) (in Nm)
1 Front Frame Hanger to Front Leaf Spring Eye 2 M20 *290-310 *393-420
2 Rear Shackle Bracket to Shackle Plate 2 M20
*290-310 *393-420
3 Rear Shackle Bracket to Spring Eye 2 M20
*290-310 *393-420
4 Air Spring to Air Spring Bracket 2 ¾"
*20-30 *27-41
5 Air Spring to Top Pad 2 ½" 20-30 27-41
6 Height Control Valve to Air Spring Bracket 2 ¼" 8-10 11-14
7 HCV Linkage to HCV Arm 2
5
/
16
" 10-12 14-16
8 HCV Linkage to Top Pad 2
5
/
16
" 10-12 14-16
9 HCV Linkage Grommet to HCV Arm 1 Grommet Push In
10 HCV Linkage Grommet to Top Pad 1 Grommet Push In
11 Spring Center Aligning Dowel Pin (Flat Floor Bus) 2 ¾" Loose Fit
12 Axle Wrap Liners for Clamp Group 2 Formed Snap Fit
DO NOT ASSEMBLE CLAMP GROUP WITHOUT AXLE WRAP LINERS. FAILURE TO DO SO CAN CAUSE
LOSS OF VEHICLE CONTROL, PROPERTY DAMAGE OR PERSONAL INJURY.
13 Clamp Group Hardware 8 ¾" 285-305 386-414
ENSURE CLAMP GROUP IS ALIGNED PROPERLY PRIOR TO TIGHTENING HARDWARE. FAILURE TO
DO SO CAN CAUSE LOSS OF VEHICLE CONTROL, PROPERTY DAMAGE OR PERSONAL INJURY.
14 Knuckle Attachment Bolt (Socket Head Cap Screw) 4
5
/
8
" 175-200 237-271
15 Knuckle / Axle Wheel Stop Bolt 2
5
/
8
" Jam Nut 40-60 54-81
16 Tie Rod Tube to Tie Rod Ends 2
5
/
8
" 60-75 81-102
17 Tie Rod Ends to Lower Steering Knuckle 2
7
/
8
" Castle Nut **185 **251
18 Shocks Eye Bolts 2 ¾"
*125-135 *169-183
• All hardware ¼" and greater is Grade 8 with no additional lubrication.
Frame mount hardware in most cases are Huck style fasteners supplied by the OEM.
NOTE:
* All hardware information in gray in the matrix denotes recommended torques for fasteners originally supplied by the vehicle
manufacturer. If Hendrickson supplied fasteners are used, tighten to Hendrickson torque values, if non Hendrickson fasteners are used,
follow torque specifications listed in the vehicle manufacturer’s service manual. Hendrickson is not responsible for maintaining vehicle
manufacturer’s torque values.
** Torque to 185 foot pounds (251 Nm), advance nut to next hex face to install cotter pin. Do not back off nut for cotter pin installation.
A-105
MODEL
AIRTEK COMFORT AIR
Blue Bird RIDE HEIGHT
SHOCK ABSORBER
LENGTH
RIDE HEIGHT
SHOCK ABSORBER
LENGTH
From the bottom of the
frame to the center of axle
At ride height with a
tolerance of ¼"
From the bottom of the
frame to the bottom of the
main support member.
At ride height with a
tolerance of ¼"
All American
Front Engine Model
14
7
8" 17¼" 4
7
8" 22¾"
All American
Rear Engine Model
14
7
8" 17
15
32"
17730–248 Appendix
A-105
SERVICE MANUAL
L
147
FRONT AXLE & SUSPENSION
1
APPENDIX
Seitenansicht 112

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