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XL-AS20053BM-en-US · 2016-09-27 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF, 
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.

Maintenance and Service Schedule

19

14.  Routine Maintenance and  

Daily Inspection

1.  Daily or before each trip, check the suspension to be sure 

it is fully operational. 

2.  Inspect all decals to ensure they are clearly legible and 

intact. Clean with a terry cloth towel, soap and water. 

3.  Visually inspect air springs for sufficient inflation and 

that the suspension is at proper ride height. For ride 
height details and measurements, refer to Section 8  
of this manual. 

4.  Inspect the slider lock pins and slider pull handle for 

signs of excessive wear, bending or binding.

5.  Inspect the front and rear hold down clips to ensure that  

they are correctly secured around the body rails.

14.1  Initial Three (3) Months or 5,000 Mile 

(8,000 km) Service Inspection

1.  Suspension ride height (underside of frame to centerline 

of axle) MUST be within ±1/4" (6 mm) of recommended 
design height. For instructions on measuring ride height, 
refer to Section 8.

An improperly set ride height could result 
in suspension component damage and/or 
poor vehicle ride performance.

2.  After first three (3) months or 5,000 miles (8,000 km) 

of service, whichever comes first, inspect bolts and nuts 
at the pivot connections to ensure they are properly 
torqued. Check all other nuts and bolts for proper torque, 
refer to the specifications listed in Section 15. Re-torque 
as necessary thereafter.

3.  With the vehicle on a level surface and air pressure above  

85 psig (5.9 bars), verify that all air springs are of sufficient  
and equal firmness.

NOTE:

  Check all air control system fittings for air leaks, 

by applying a soapy water solution and checking 
for bubbles at all air connections and fittings.

14.2 Routine Physical Inspections

Every 100,000 Miles (160,000 km) or one (1) year, whichever 
comes first.

Check all other suspension components for any sign of damage,  
looseness, torque loss, wear or cracks. Repair, tighten or 
replace damaged part(s) to prevent equipment breakdown.

14.3 Visual Inspection Procedure

IMPORTANT:

  A schedule for physical and visual inspections  

should be established by the operator 
based on severity of operation or damage 
to the vehicle could occur.

IMPORTANT:

  During each pretrip and safety inspection 

of the vehicle, a visual inspection of the 
suspension should be done or damage to 
the vehicle could occur.

Visually check for: 

  Loose, broken or missing fasteners. Repair or replace  

as needed.

Loose, damaged, or missing fasteners  
can cause loss of vehicle control which, 
if not avoided, could result in death or 
serious injury.

  Air springs – clearances, wear damage, and proper inflation.

  Shock absorbers – leaking or damaged.

  Cracked parts or welds. 

Also:

  Check the slider locking pins, slider pull-bar mechanism 

and slider wear pads for signs of excessive wear or 
binding, refer to Section 11 

(Figure 19)

. Repair or 

replace as needed.

  Inspect the structure of the slider box and cross members 

for damage, refer to Section 11 

(Figure 19)

. Repair or 

replace as needed.

  Inspect the front and rear hold down clips to make 

certain the clips are secured correctly around the body 
rails, refer to Section 11 

(Figure 19)

. Torque all 1/2" 

nuts to 75-90 ft.-lbs. (102-122 N•m).

Summary of Contents for CBXA 40

Page 1: ...XL AS20053BM en US Installation and Operation Manual CBXA 40 Slider Suspension Systems For Disc and Drum Brake Applications ...

Page 2: ......

Page 3: ...on that if not followed could lead to hindered product performance Used without the safety alert symbol indicates a potentially hazardous situation which if not avoided could result in property damage Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury Indicates a potentially hazardous situation which if not avoided could result in death or ser...

Page 4: ... cause tire failure fire or loss of vehicle control which if not avoided could result in death or serious injury 1 Safety Instructions General and Servicing Safety Instructions Read and observe all Warning and Caution hazard alert messages The alerts provide information that can help prevent serious personal injury damage to components or both Failure to follow the instructions and safety precauti...

Page 5: ...E TO REPOSITION SLIDER 1 Remove stop bar and move to desired location 2 Pull manual switch to disengaged position If lock pins do not retract after manual switch is in disengaged position gently rock trailer and pins will automatically retract 3 Carefully move trailer until contacting stop bar 4 Push manual switch to engaged position and visually check all lock pins for proper engagement 5 Locate ...

Page 6: ...lacements immediately Figure 4 Figure 5 ALIGNMENT BOLT IS ON THE FRONT OF THE ROADSIDE FRAME BRACKET XL AR372 01 STEP 1 Before aligning axle pull trailer forward in a straight line for a sufficient distance to insure there are no binds in the suspension and then lock the brakes so the slider lock pins rest against the rear of the body rail holes STEP 2 Check to verify trailer is empty and emergenc...

Page 7: ...als and ensure that they are clean and completely legible If any labels are missing loose damaged or difficult to read contact SAF HOLLAND Customer Service at 888 396 6501 to order replacements immediately CAUTION Failure to check for proper PosiLok position could result in vehicle suspension damage XL AR437 WHEN TRAILER PARKED Check that the PosiLok is in the DOWN position PosiLok DOWN BEFORE MOV...

Page 8: ... mounting plate welded to the beam Figure 8 NOTE This manual applies to the suspension models listed on the front cover However we urge you to determine your specific model number write that information below and refer to it when obtaining information or replacement parts Figure 9 5 CBXA 40 Model Nomenclature The sample tag illustrated will help you interpret the information on the SAF HOLLAND Inc...

Page 9: ...ied on the installation drawing NOTE Any substitution for filler material from the above standard must comply as a minimum with the following mechanical properties Tensile Strength 72k psi 496 MPa Yield Strength 60k psi 414 MPa Charpy V Notch 20 ft lbs 27 N m at 0o F 17 7o C Elongation 22 The recommended welding gas for gas metal arc welding GMAW is 90 Argon 10 CO2 If a different gas is used welds...

Page 10: ...T Make certain that all air lines and valves are free from obstruction through the full operational range of the suspension IMPORTANT A pressure protection valve PPV must be attached to the air reservoir in order to maintain proper air pressure in the air reservoir Figure 11 IMPORTANT The pressure protection valve maintains safe brake pressure Approximately 85 psig 5 9 bars opens the valve and 65 ...

Page 11: ...L VALVE HCV POSILOK ACTUATOR TO PPV AND AIR RESERVOIR TO GLAD HAND OR EMERGENCY BRAKE STANDARD AIR CONTROL SYSTEM AIR RESERVOIR PRESSURE PROTECTION VALVE PPV HEIGHT CONTROL VALVE HCV TO HEIGHT CONTROL VALVE HCV TO GLAD HAND OR EMERGENCY BRAKE AIR SPRING AIR SPRING AIR SPRING AIR SPRING TO AIR SUPPLY TO AIR SPRINGS TO AIR SPRINGS CONTROL ARM NEUTRAL POSITION AIR RELEASE CONTROL VALVE SLIDER PULL PI...

Page 12: ...esult in damage to trailer components 5 Install service and emergency lines to the slider and allow the suspension to air up 6 Measure the ride height of the suspension Figure 13 with a tape measure 7 Compare the measured suspension ride height value to the appropriate value Table 1 Ensure your measured ride height value is within 1 4 6 mm IMPORTANT If your measured ride height value is NOT within...

Page 13: ...indle extensions be utilized Dimensions A and B Figure 15 MUST be equal to within 1 8 3 mm b For proper alignment measure the distance from the centerline of the front axle spindles to the centerline of the rear axle spindles Dimensions C and D Figure 15 MUST be equal to within 1 16 1 mm 9 2 Alignment Instructions 1 Using the measurements from Step 4 align each axle Align by rotating the alignment...

Page 14: ...lignment plates are NOT welded to the frame bracket but are free to rotate 2 Relocate the slider to the forward position and recheck the king pin alignment Variance in dimensions A and B Figure 18 indicates there are discrepancies in lock pin hole location 10 Brake Adjustment Instructions Brakes should be adjusted per axle and brake manufacturer s specifications A KINGPIN B D C Figure 18 A B 1 8 3...

Page 15: ... should be within 1 4 6 mm of the recommended design height For proper height refer to Ride Height Adjustment Section 7 7 Verify that the 1 1 8 pivot nut are torqued to 550 600 ft lbs 746 813 N m Figure 23 IMPORTANT The SwingAlign design maintains proper alignment under correct torque without welding DO NOT weld Figure 19 NOTE SwingAlign pivot connections are on roadside and fixed alignment pivot ...

Page 16: ...e air release control valve knob to disengage the lock pins 4 Visually check to ensure the lock pins are in the disengaged position and that the QWIK RELEASE pull arm handle is locked Notch 2 Figure 22 When lock pins have properly disengaged proceed to Step 6 If lock pins fail to disengage proceed to Step 5 5 If the QWIK RELEASE pull handle is in the notch 2 position but the lock pins fail to retr...

Page 17: ...bar Figure 20 7 a Set the tractor brakes NOTE Trailer parking brakes should still be engaged b Lift and push the pull arm handle from the disengaged position Notch 2 Figure 23 to the engaged position Notch 1 Figure 24 NOTE If your slider is equipped with an air release pin mechanism push the air release control valve knob to engage the lock pins 8 Visually check that the lock pins are fully engage...

Page 18: ...e when subjected to overloading or other operational issues to protect the trailer sub frame The PosiLok is engaged when the flipper plates are in the down position 1 Release air pressure from the trailer brake system or disconnect the glad hand This engages the parking brakes and causes the PosiLok actuator to engage which rotates the rod so the flipper plates swing down into an engaged position ...

Page 19: ...icle on a level surface and air pressure above 85 psig 5 9 bars verify that all air springs are of sufficient and equal firmness NOTE Check all air control system fittings for air leaks by applying a soapy water solution and checking for bubbles at all air connections and fittings 14 2 Routine Physical Inspections Every 100 000 Miles 160 000 km or one 1 year whichever comes first Check all other s...

Page 20: ...y brake re lining NOTE Torque specifications listed above are with clean lubricated coated threads Table 3 All new SAF HOLLAND fasteners come precoated from the factory For bolt and lock nut grade markings refer to Figure 29 IMPORTANT The use of special lubricants with friction modifiers such as Anti Seize or Never Seez without written approval from SAF HOLLAND Engineering will void warranty and c...

Page 21: ...21 XL AS20053BM en US 2016 09 27 Amendments and Errors Reserved SAF HOLLAND Inc SAF HOLLAND HOLLAND SAF and logos are trademarks of SAF HOLLAND S A SAF HOLLAND GmbH and SAF HOLLAND Inc Notes ...

Page 22: ...22 XL AS20053BM en US 2016 09 27 Amendments and Errors Reserved SAF HOLLAND Inc SAF HOLLAND HOLLAND SAF and logos are trademarks of SAF HOLLAND S A SAF HOLLAND GmbH and SAF HOLLAND Inc Notes ...

Page 23: ...23 XL AS20053BM en US 2016 09 27 Amendments and Errors Reserved SAF HOLLAND Inc SAF HOLLAND HOLLAND SAF and logos are trademarks of SAF HOLLAND S A SAF HOLLAND GmbH and SAF HOLLAND Inc Notes ...

Page 24: ...ginal component assembly SAF HOLLAND Original Parts are tested and designed to provide maximum performance and durability Will fits look alikes or worse yet counterfeit parts will only limit the performance potential and could possibly void SAF HOLLAND s warranty Always be sure to spec SAF HOLLAND Original Parts when servicing your SAF HOLLAND product SAF HOLLAND USA INC 1950 Industrial Blvd Muske...

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