PRIMAAX ® EX – Freightliner • Western Star Vehicles
REAR SUSPENSIONS
■ Technical Notes The following information is intended to assist in determining which suspension is equipped on the vehicle.As an example, Figure 1 identifies the suspension rating and capacity. Refer to Literature No. SP-164 for FIREMAAX EX, available online at www.hendrickson‑intl.com.
SUSPENSION RATING CAPACITY •
FIGURE 1
Small Clamp Group Axle Size
Large Clamp GroupAxle Size
DANA AXLE
MERITOR AXLE
AXLE
134 mm (5.3")
150.1 mm (5.9")
140 mm (5.5")
134.8 mm (5.3")
140 mm (5.5")
117 mm (4.6")
Suspension Model: PRIMAAX EX 23K•46K•69K | 26K S•52K S•78K S S – designates Small Clamp Group
Suspension Model: K 26K•52K•78 PRIMAAX EX
U-bolts
U-bolts
4¼"
5"
5 9 16 / "
6¼"
D-Pin
D-Pin
AIR SPRINGS •TRANSVERSETORQUE RODS
PRIMAAX EX 23K 46K 69K • •
PRIMAAX EX 26K 52K 78K • •
PRIMAAX EX 26KS 52KS 78KS • •
Air SpringAssembly
Air SpringAssembly
Air SpringAssembly
OR
OR
ULTRA ROD ® Transverse Torque Rod Assembly
TRAAXROD ® Transverse Torque Rod Assembly
TRAAX ROD Transverse Torque Rod Assembly
TRAAX ROD Transverse Torque Rod Assembly
ULTRA ROD Transverse Torque Rod Assembly
NOTES: Quantities specified are shown for a tandem suspension.Adjust quantities for single or tridem suspensions. Quantities of service kit components may vary from amount shown in lists. * Item included in kit/assembly only, part not sold separately. ** Transverse Torque Rods are mandatory for the PRIMAAX EX suspensions regardless of axle spacing. See Literature Nos. 59310‑‑004 and 59310-058 for more information.TRAAX ROD bushings are non-serviceable, the entire torque rod assembly requires replacement.Visit the TRAAX ROD website www.traaxrods.com for more information. *** S-cam is not required for disc brakes. **** Alternate configuration of the QUIK-ALIGN fasteners.The locknuts located inboard will allow additional clearance for wider tires or tires with chains.Tightening is still required ONLY on the locknut. ***** As originally equipped by the vehicle manufacturer. NOTE: For Severe Service kits, See Page 413.
326
www.hendrickson-intl.com | Reference Lit. No. SP-230
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