NHTSA ID Number: 10131387
Manufacturer Communication Number: L1182, Rev. G
TSB/Document Date: 2018-04-02
Summary
Operation Name: Hendrickson
Trailer Commercial Vehical Systems Document Name: Parts Catalog - Trailer Control Systems Summary: This document provides a guide of available Hendrickson pneumatic controls, valves and load scales sytems for use on Hendrickson trailer suspension systems.
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TSB/Document ID: L1182, Rev. G
Replacement Service Bulletin Number:
MFR Communication Date: 2018-01-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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CONTROLS Parts Catalog
TRAILER CONTROL SYSTEMS
3
1
Table of Contents
Height Control Valves
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Height Control Valves — Drum Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Height Control Valves — Disc Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aftermarket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
2
5
6
Load Scales
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Scale Decals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Scales — Polycarbonate Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Scales — Stainless Steel Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aftermarket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
7
8
9
9
Lift Axle Controls
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric / Manual Lift Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Lift Axle Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Lift Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
10
11
11
Dump Valves
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dump Valves — Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dump Valves — Automatic / Specialty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aftermarket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
12
14
14
QUIK-DRAW® Valves
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
QUIK-DRAW Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Aftermarket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SURELOK® Controls
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SURELOK Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Aftermarket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Single Axle Dump System
Single Axle Dump System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2
Height Control Valves
Height Control Valves
Trailer air suspension systems require precise air flow management. Using an Advanced Shear-Seal ® design to
ensure accurate air flow, Hendrickson Height Control Valves (HCV) deliver superior performance and durability.
u Precise, highly repeatable dead band
u High air flow and a proportional response
u Prolongs air spring and shock absorber life
u Specifically designed and tested for optimum performance with Hendrickson air suspensions
Height Control Valves — Drum Brake
Product
Family
Suspension
Model
AANT 23K
Axle
Diameter
5 inch /
5.75 inch LDA™
AAT 23K
AAT 25K
AAT 30K
5 inch /
5.75 inch LDA
AAEDT 30K
5 inch
Dump Feature
Without
X
X
With
No PPV
No 90-degree
Brass Fittings
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
INTRAAX®
AANLS 20K
AANL 23K
AAL 23K
AAL 25K
AAL 30K
AAEDL 30K
AAL 23K
AAL 25K
AAL 30K
CONNEX™
CXU 23K
CXU 25K
5 inch
5.75 inch LDA
X
X
X
X
X
X
5.75 inch LDA
5 inch
5 inch
HT250US
HT300US
5 inch
X
X
X
AKH-235B-3
AKHD-235-3
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
5 inch
AKH0270-3
AKH0270B-3
AKHD0270-3
AKHD0270B-3
AKHD0270F-3
AKH-238-3
AKH-238B-3
AKHD-238-3
AKHD-238F-3
AKH-235-3
AKH-235B-3
AKHD-235-3
AKH0275-3
AKHD0275-3
AKH0292-3
AKH0292B-3
AKHD0292-3
AKHD0292F-3
AKH-235-3
X
X
HT190T / HT190U
HT230
HT250T / HT250U
HT300T / HT300U
HTHKR
All Models
X
X
5 inch
HT™ Series
T Series
X
Part
Number
X
X
X
AKH0306-3
AKH0306B-3
AKHD0306-3
AKHD0306F-3
AKH-236-3
AKH-236B-3
AKHD-236-3
AKHD-236F-3
AKH-134-3
AKH-134B-3
AKHD-195-3
AKH-179-2
AKH-236-3
AKH-236B-3
AKH-236F-3
AKHD-236-3
AKHD-236F-3
AKH-239-3
AKHD-239-3
Kits listed include height control valve, mounting brackets, 3/8-inch tube fittings and bolted link assembly.
Height Control Valves 3
Height Control Valves
AKH-181-3
Product
Family
Suspension
Model
HKANT 23K
HKANT 40K
HKANT 46K
HKAT 50K
HKAT 69K23
HKAT 69K25
HKANT 69K23
VANTRAAX®
AKHD-235-3
Axle
Diameter
Dump Feature
Without
With
No PPV
No 90-degree
Brass Fittings
X
AKH-181-3
5 inch /
5.75 inch LDA™
X
AKHD-203-3
X
HKAL 46K
HKARL 46K
5 inch
AKH-235-3
X
X
AKH-235B-3
X
AKHD-235-3
X
HKANL 23K
HKAL 46K
HKARL 46K
5.75 inch LDA
AKH0306-3
X
HK190
HK230
5 inch
AKH0306B-3
X
X
AKHD0306-3
X
HK™ Series
X
X
X
AKHD-205-3
AKH0270-3
X
5 inch /
5.75 inch LDA
X
AKH0270B-3
X
X
AKHD0270-3
X
X
INTRAAX®- SP
AKHD0270B-3
X
X
AAZL 23K
AAZL 46K
5 inch
X
X
AKH-235B-3
AKHD-235-3
X
5.75 inch LDA
AKH0306-3
X
X
AKH0306B-3
X
X
Kits listed include height control valve, mounting brackets, 3/8-inch tube fittings and bolted link assembly.
4 Height Control Valves
AKHD0270F-3
AKH-235-3
X
AAZL 23K
AAZL 46K
AKHD0306F-3
AKH-187-3
X
AAZNT 23K
AAZNT 46K
AAZNT 69K
Part
Number
AKHD0306-3
X
AKHD0306F-3
Height Control Valves
Bulk Height Control Valves — Drum Brake
1
Suspension Model
Kit Description
Part Number
AAL, AAEDL, AAEDT, CXU, HT250US, HT300US, HKAL, AAZL
Height Control Valve, Bulk 50 (includes A-24508 long arm)
AKH02491
AANT, AAT, AANL, AANLS, HT, HKANT, HKAT, HK,
HTHKR, HKARL, HS, AAZNT
Height Control Valve, Bulk 50
(includes A-24642 short arm)
AKH0250
AAL, AAEDL, AAEDT, CXU, HT250US, HT300US, HKAL, AAZL
Integral Dump Height Control Valve, Bulk 35
(includes A-29391 long arm)
AKHD0249
AANT, AAT, AANL, AANLS, HT, HKANT, HKAT, HK,
HTHKR, HKARL, HS, AAZNT
Integral Dump Height Control Valve, Bulk 35
(includes A-29393 short arm)
AKHD0250
The long arm HCV can be used on short arm HCV applications. However, the installer must remove the end of the arm and use the bolt hole in the arm that is closest to the valve body.
Height Control Valve Hardware Kits — Drum Brake
Suspension
Model
Axle
Diameter
AAT
5 inch /
5.75 inch LDA™
AAL, AAEDL, AAEDT, HKAL, HKARL, AAZL
5 inch
AAL, HKAL, HKARL, AAZL
5.75 inch LDA
HKANT, HKAT
5 inch /
5.75 inch LDA
AANT, AAZNT
5 inch /
5.75 inch LDA
AANL
5.75 inch LDA
AANLS
5 inch
Fasteners
Mounting
Brackets
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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