Reyco Granning Suspensions 1205 Industrial Park Drive Mount Vernon, MO 65712 Phone: 417-466-2178 Fax: 417-466-3964 ISO Certified: 9001:2015 www.reycogranning.com ASAPAT1000|1200|1400| Series Passive Steer Tag Suspension Owner’s Manual Motorhome Suspensions Document #: D715154 Revision: OR Revision Date: 05/2019 Installation Instructions Maintenance Instrctuions Service Parts
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ASAPAT1000|1200|1400| - Reyco Granning · ASAPAT1000/1200/1400 Installation Instructions Caster Angle Caster is the fore aft angle of the axle king pin with respect to true vertical.
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Reyco Granning Suspensions1205 Industrial Park DriveMount Vernon, MO 65712Phone: 417-466-2178Fax: 417-466-3964ISO Certified: 9001:2015www.reycogranning.com
ASAPAT1000|1200|1400| Series Passive Steer Tag Suspension
Reyco Granning Suspensions was formed by the merger and acquisition of two well-known names in the heavy-duty vehicle suspension industry: Reyco and Granning.
Reyco grew out of the Reynolds Mfg. Co. and was first known as a major supplier of brake drums for heavy-duty vehicles, and later developed a full line of air and steel springs suspensions for trucks, busses, trailers, and motorhomes.
Granning Air Suspensions was founded in 1949 in Detroit, Michigan as a manufacturer of auxiliary life axle suspensions. Granning later became an innovator of independent front air suspensions for the motorhome industry.
Reyco Granning LLC was formed in early 2011 through a partnering of senior managers and MAT Capital, a private investment group headquartered in Long Grove, Illinois.
Reyco Granning manufacturing facilities are certified to the ISO9001:2015 standards, a globally recognized assurance that quality standards have been established and are maintained by regular rigorous audits.
p. 1 Series Passive Steer Tag Suspension
ASAPAT1000/1200/1400 Installation Instructions
Special Notes 4
Suspension Identification 5
Suspension Specifications 6
Pre-Installation Checklist & Procedures 7
Shipped Suspension Components 8
Installation Procedures 10
Caster & Camber Angle and Air Control 11
Axle controls & Final Assembly 12
Torque Table 13
Upper Air Spring Mount Installation 13
Drawing 714555 & Bill of Material 15
Drawing 714997 & Bill of Material 22
Maintenance Schedule 29
Series Passive Steer Tag
Suspension
p. 2
Tabl
e of
Con
tent
s
WARNING
A warning indicates procedures that must be followed exactly.
Serious personal injury can occur if the procedure is not followed.
CAUTION
A caution indicated procedures that must be followed exactly. Damage
to equipment of suspension components and personal injury can occur if the procedure is not
followed.
NOTE
A note indicates an operation, procedure or instruction that is important for
correct service.
ASAPAT1000/1200/1400 Installation Instructions
This service manual describes the correct installation procedures for the Reyco Granning ®
Passive Steer Tag suspension Model ASAPAT1000/1200/1400. Unit is also equipped with “Center on Reverse” technology. Overloading the suspension may result in adverse ride and handling characteristics and/or damage to the suspension.
You must read and understand all procedures and safety precautions presented in this manual before conducting any service work on the suspension.
It is important that the proper suspension be selected for the vehicle application. The required capacity, loaded frame to ground measurement, driveline clearance, axle travel, and axle spacing must all be taken into account.
Reyco Granning, LLC uses the following types of notices for potential safety problems and to give information that will prevent damage to equipment.
p.3 Series Passive Steer Tag Suspension
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ASAPAT1000/1200/1400 Installation Instructions
Proper tools must be used to perform the installation procedures in the manual. Some procedures require the use of special tools for safe and correct service. Failure to use the proper and/or special tools when required can cause personal injury and/or damage to suspension components.
CAUTION The ASAPAT1000/1200/1400 suspension, as with all suspension systems, must be installed at the proper Ride Height to insure trouble free operation. If the Ride Height is off, the suspension may not carry its share of the load under all conditions. Running at the incorrect Ride Height may damage the suspension or other vehicle components.
You must follow your company safety procedures and use proper safety equipment when you service or repair the suspension.
The information contained in this manual was current at the time of printing and is subject to change without notice or liability. Reyco Granning LLC reserves the right to modify the suspension and/or procedures and to change specification at any time without notice and without incurring obligation.
Defective or incorrect components are to be returned to Reyco Granning LLC in exchange for replacement components, conditionally based upon warranty requirements being met.
For additional information concerning suspension selection, contact the Reyco Granning, LLC Customer Service Department at 800.753.0050
Installer Responsibilities:
º To insure that the vehicle will function properly under the increased weight conditions and loading that will exist when an additional axle is installed.
NOTE • A correct installation must result in a
loaded ride height of 8.5”
• To determine the correct location of thesuspension in order to provide the propervehicle load distribution.
• To insure that the load carried by each axleon the vehicle does not exceed the ratedcapacity of the components involved orexceed State and Federal laws where thetruck is operated.
• To insure that proper clearance existsbetween:
• The drive shaft and the tag axle onpusher units.
• Tires in the lateral, force, aft, and verticaldirections.
• Air springs when they are at theirmaximum diameter.
• Any other moving suspensioncomponents not listed.
No welding is permitted on any of thesuspension components, except wherespecified by Reyco Granning, LLC.
No alterations are permitted to any of the suspension components.
Series Passive Steer Tag Suspension p.4
Sp
ecia
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ote
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MO
0 SERIAL 000000 0
MODEL ASAPAT1X0X-DX
GAWR/LB
1X,000 MAY BE COVERED BY THE FOLLOWING PATENTS (OTHER
The suspension model and serial number are stamped on an aluminum tag that is riveted to the suspension on the left-hand hanger (Figure 1). The serial number is used by Reyco Granning, LLC for control purposes and should be referred to when servicing the suspension or requisitioning technical support (Figure 2).
Figure 1 - Suspension Identification
Location (ASAPAT1401 Shown)
Figure 2 - Suspension Serial Number Tag
p.5 Series Passive Steer Tag Suspension
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ASAPAT1000/1200/1400 Installation Instructions
ASAPAT1X0X-DX SUSPENSION SPECIFICATIONS
MODEL: SEE TABLE 1 BRAKE TYPE: SEE TABLE 1
CAPACITY (LB): SEE TABLE 1 BRAKE SIZE: SEE TABLE 1
FLANGE TO FLANGE (IN): 97.12 BRAKE LINING: BX275
KPI (IN): 73.9 BRAKE ANGLE (DEG): 90 BAF
CASTER (DEG): 4.0 DUST SHIELDS: NO
MAX INNER WHEEL CUT (DEG): 17.0 BRAKE CHAMBER SIZE: SEE TABLE 1
CONTROL LINK BUSHING DUROMETER: 85 SA CHAMBER ANGLE (DEG): SEE TABLE 1
BOLT CIRCLE: 10 ON 11.25 IN DIA CHAMBER PORT SIZE: 3/8-18 NPTF
WHEEL PILOTION GYPE: HUB AIR SPRING PORT SIZE: SEE TABLE 1
STUD SUZE: M22-1.5 ABS: INSTALLED
WHEEL TYPE: ALUMINUM FRAME WIDTH (IN): 34.25
CAP NUTS: YES RIDE HEIGHT (IN): 8.25
WHEEL SEAL: OIL JOUNCE TRAVEL (IN): 3.5
HUB OIL SUPPLIED: YES REBOUND TRAVEL (IN): 4.3
LATERAL AXLE OFFSET (IN): ± .38
LATERAL AXLE COMPLIANCE (IN): ± 1.75
TABLE 1
MODEL: ASAPAT1001-DR ASAPAT1201-DR ASAPAT1401-DS
CAPACITY (LB): 10,000 12,000 14,000
BRAKE TYPE DRUM DRUM DISC
AIR SPRING MAX GROW (IN): 15.2 15.5 16.4
BUMPER CONTACT HEIGHT (IN): 5.4 5.4 5.4
BRAKE SIZE 15 X 4 15 X 4 MC225
BRAKE LINING ES420 ES420 JURID 539-SS29
BRAKE CHAMBER SIZE T20 T20 T16
CHAMBER ANGLE (DEG) 36 ± 2 CBA 36 ± 2 CBA 12
AIR SPRING PORT SIZE 3/8-18 NPTF 3/8-18 NPTF 1/4-18 NPTF
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ASAPAT1000/1200/1400 Installation Instructions
Before beginning the installation:
1. Check that the suspension you received matches the specification provided to
you by your production or engineering department.
2. Check the drive shaft clearance for your suspension and verify that the vehiclesdrive shaft does not protrude past the frame lower than that dimension at thedesired installation location. This dimension is 10” for theASAPAT1000/1200/1400.
3. On any auxiliary axle application:
º Verify that axle spacing conforms to Federal and local bridge laws.º Verify that the auxiliary suspension location is based on front axle steering angle,
vehicle wheelbase and maximum recommended auxiliary axle spacing from center of tandem.
º Verify that the vehicle will have the proper load distribution after installation. º Verify that there is sufficient fore/aft frame rail clearance to mount the auxiliary suspension(s)
4. On Truck Frames:
º Verify that the frame width is within the allowable mounting range of thesuspension (See Table 1).
º Mark the location of the suspension side rails on the frame rails. (See Figure 6).Check for interferences with any existing brackets and bolts.
º Check for any interferences between the axle and the drive shaft, if applicable.
º Verify that the vehicle cross members and backing plates are correctly
positioned for proper support of suspension.
WARNING Adequate suspension support must be provided within the vehicle frame. See the suspension interface drawing for suggested frame crossmember
locations.
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ASAPAT1000/1200/1400 Installation Instructions
5. Confirm that the components listed have been provided in sufficient quantities.(See Figure3) Contact Reyco Granning LLC Customer Service Department if anymissing or damaged components are found.
Components Shipped:
1) (1) ASAPAT1000/1200/1400 Auxiliary Axle
2) (1) l&M Manual
Figure 3
Series Passive Steer Tag Suspension p.8
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ASAPAT1000/1200/1400 Installation Instructions
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p.9 Series Passive Steer Tag Suspension
ASAPAT1000/1200/1400 Installation Instructions
Installation Reyco Granning, LLC provides a
wide variety of suspensions to
accommodate most common
frame heights. The loaded frame to
ground dimension and the
intended tire size are used to find
the correct ride height of the
suspension.
The following formula may be
helpful in finding the correct
rideheight:
NOTE The loaded frame to ground
measurement should be acquired at the desired suspension location
on a LOADED vehicle.
CAUTION
The ASAPAT1400 suspension is custom fit for a specific frame height.
Using a spacer will result in component overload.
The suspension ride height is the distance between the center of the axle spindle and the bottom of the frame to which the suspension is attached. (See Figure 4).
Figure 4
The installed suspension ride height must be within the range specified on the
height table for the model being installed when it is in the LOADED condition.
CAUTION Installing a suspension with an out
of range ride height may result in insufficient axle lift, inadequate ground clearance, improper
loading at the axle, and suspension component overload.
Series Passive Steer Tag Suspension p.10
Insta
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Caste
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Caster Angle
Caster is the fore aft angle of the axle king pin with respect to true vertical. (See Figure 5). Positive caster is when the top of the king pin is positioned rearward of the vertical position. Negative caster is defined as the top of the king pin being ahead of the vertical position. ASAPAT suspensions are built with preset positive caster (4°) from the factory. If your frame has more than 2° of rake, this can have an adverse effect
on steering. Please contact Reyco Granning, LLC Customer Service for further instructions if
this condition exist.
Camber Angle
A camber angle of 0.5° is preset at the factory.
Figure 5
Air Control System When installing your air kit (customer supplied) the following rules generally apply
1. Never add lubrication or anti-freeze to the air system.
2. Avoid drawing the air lines tight, kinking the air lines or passing themthrough areas that might cause damage.
3. Use only DOT approved air line fittings to plumb the system.
4. DOT type brake line should be used to plumb the system.
p.11 Series Passive Steer Tag Suspension
ASAPAT1000/1200/1400 Installation Instructions
Axle Controls
When operating a truck in reverse, a steerable auxiliary axle must be raised or return to center. The ASAPAT1000/1200/1400 is of the return to center type. Only air control kits that allow this should be used.
Final Assembly
1. Install the air control kit and plumbing
2. Install wheels and torque lug nutsto wheel manufacturer’s.
3. Check that the steering axle
wheel bearings are filled with oil.
4. Install brake lines for steer brakes, per
the chassis manufacturer’s
specifications.
5. Make all ABS connections.
6. Inspect brakes and adjust if necessary.
7. On rounded snubber end, apply
thick bearing grease.
8. Adjust centering mechanism per OE
chassis direction in relation to drive
axle alignment.
Final Assembly Check
1. Check that all suspension boltsare tightened to therecommended torque values.(See Torque Tables).
2. Check air system for leaks andproper centering functionality.
3. Cycle the suspension through itsentire range with wheels and tiresinstalled, and check for interferencebetween the tires, wheel, axle, brakechambers etc. and the truck frame,body, or other components.
4. Inspect lug nuts for proper torque.
5. Make sure that wheels rotate freely.
6. Make sure that brakes areproperly adjusted.
7. Insure oil in the hubs is at theproper level.
Series Passive Steer Tag Suspension p.12
Axle
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ASAPAT1000/1200/1400
Installation Instructions
Torque Table
Threaded fasteners are covered by specifications that define required mechanical properties, such as tensile strength, yield strength, proof load, and hardness. These specifications are carefully considered when a fastener is selected for a particular application. To assure continued safe vehicle performance and suspension operation, replacement fastener used most of the same mechanical and physical properties as the fasteners originally provided.
Grade Markings on Bolts
Grade Lock Nut
Grade B, F
Lock Nut: Grade C, G
Identification
3 Dots 6 Dots
Grade Markings on Lock
Nuts
Most fasteners have identification markings as shown that indicate the fastener strength or grade. Care must be taken to insure replacement fastener strength or grade is the same as the original fastener.
Application Nut Size
Torque Specification (cleaned and
lubricated) (lb-ft)
Torque
Sequence (if
required) Upper Control Arm
Bolts 1-14 Grade G 660-720 N/A
Lower Control Arm Bolts
1-14 Grade G 660-720 N/A
Cross Member Bolts 1/2-20 Grade G 110 N/A Shock Bolts 3/4 150-190 N/A
Ride Air Spring Mounting (upper)
3/4-16 Grade 5 1/2-13 Grade 5 35 N/A
Ride Air Spring Mounting (lower)
3/4-16 Grade 5 1/2-13 Grade 5 35 N/A
Hub Cap Bolts 5/16-8 Grade 5 12-16 N/A
Hub Spindle Nuts Refer to
Installation Drawing
Refer to Installation Drawing
Refer to Installation Drawing
p. 13 Series Passive Steer Tag Suspension
ASAPAT1000/1200/1400 Installation Instructions
Torque Table 7
Disc and Drum style
Hubs
Hub Type
Hub Piloted Hubs: M22x1.5
Step torque
to:
50 ft-lb
450 - 500 ft-lb
Series Passive Steer Tag Suspension p. 14
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p.15 Series Passive Steer Tag Suspension
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ASAPAT1001/1200/1400 Installation Instructions
Series Passive Steer Tag Suspension p. 16
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Series Passive Steer Tag Suspension p. 20
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p.22 Series Passive Steer Tag Suspension
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71499
7 B
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Series Passive Steer Tag Suspension p. 23
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71499
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p.24 Series Passive Steer Tag Suspension
ASAPAT1000/1200/1400 Installation Instruction
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ASAPAT1000/1200/1400 Installation Instruction
Series Passive Steer Tag Suspension p. 27
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p.28 Series Passive Steer Tag Suspension
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ASAPAT1000/1200/1400 Installation Instruction
GENERAL
MAINTENANCE
SERVICE TO BE
PERFORMED
MILEAGE INTERVAL
(IN THOUSANDS)
1 3 15 30 602
Control Arm
Pivot
Connections
Check locknut torque X X X X X
Inspect for looseness from worn components X X X X
Inspect for bushing wear X X X X
Air Springs
Inspect for proper clearance
(1” minimum all around) X X X X
Check mount nut and bolt torque X
Inspect for signs of chafing or wear X X X X
Check air line fitting connections X
Inspect for air leaks using soapy
water solution X
Air Fittings and Air Lines
Inspect for air leaks using soapy water solution X X X X X
Inspect for signs of chafing, cracking, or wear X X X X X
Wheels and Hubs Check wheel nut torque1 X X X X X
Check hub end play X X X X X
Brakes Check slack setting X X X X X
Check brake shoe wear X X X X X
Automatic Slack
Adjuster, and
Brake Cam
Bushings
Grease3 X3 X3 X3 X3 X3
Centering
Mechanism
Assembly
Inspect straightening pin gap,
(straight steered) 1 year / 2500 miles4
Re-grease snubber end 1 year / 2500 miles
Axle Lubrication Schedule
Axle Component
Lubrication Interval Lubrication Type
King Pin 3 mo. / 2500 miles Multipurpose NLGI 2 or
equivalent chassis lubrication
Tie Rod Ends 3 mo. / 2500 miles Multipurpose NLGI 2 or
equivalent chassis lubrication
Wheel Bearing Lubrication 1000 miles
EP-SAE 90 gear oil or equivalent
chassis lubrication 1
Wheel nut toque must be checked after the first 50 to 100 miles of service 2
Continue to perform period inspections every 15,000 miles or at regular engine service intervals 3
Grease the brake automatic slack adjuster and the cam bushing at 2,500 mile intervals
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Reyco Granning Suspensions1205 Industrial Park DriveMount Vernon, MO 65712