NHTSA ID Number: 10203611
Manufacturer Communication Number: SB014
TSB/Document Date: 2021-11-19
Summary
Light Duty Service Reminder
SERVICE BULLETIN #014
Page 1 of 2
Date: November 16, 2021
Subject: Product Maintenance – Light Duty
As the winter months approach and trailers are being prepared for storage, we would like to give a friendly reminder that routine service
and inspection are essential for the safe and reliable operation of Dexter
's running gear products. Dexter recommends that users utilize the
time and mileage schedule and service procedures as outlined in Dexter's Operation Maintenance Service Manual.
Proper maintenance begins by working safely with the right tools and an adequate mechanical experience level, paying particular attention
to all warnings and cautions that outline hazardous actions or potentially critical steps. If you are not mechanically inclined or not familiar
with trailer maintenance, please enlist a qualified professional to perform trailer running gear maintenance.
CRITICAL PROCEDURES – All of which can be found in Dexter’s Operation Maintenance Service Manual.
Bearing maintenance – proper bearing and seal inspection are critical to ensuring long life. Please review procedures for your individual
bearing type as Dexter offers several types of bearing lubrication.
•
•
•
•
Standard grease lubrication: pages 49 - 59
Optional E-Z Lube® grease lubrication: pages 49 - 59
Optional Oil bath bearing lubrication: pages 49 - 59
Optional Nev-R-Lube® bearings: pages 60 – 64
Brake inspection – brake inspection is critical to stopping performance. Please review the procedures individual to your braking type.
• Electric drum brakes, manual and Nev-R-Adjust®: pages 12 - 23
• Hydraulic Drum brakes: pages 24 – 27
• Hydraulic Disc brakes: pages 28 – 45
Annual inspections should also include a review of the break-away system, wiring, plumbing, actuation and attachment.
Additionally, owners should inspect proper brake attachment. Each time during service the fastener torque of the brake to the flange should
be verified. (see table below)
Brake Size
Qty
Part No.
Description
7"
4
006-017-00
7/16-20 Hex Nut Torque 45-70 Ft. Lbs.
10"
4
006-017-00 (2-3/8” Tube)
7/16-20 Hex Nut Torque 45-70 Ft. Lbs.
10"
4
006-207-00 (3” Tube)
7/16-20 Hex Nut Torque 45-70 Ft. Lbs.
12"
5
006-193-00
3/8-24 Hex Nut Torque 25-50 Ft. Lbs.
Suspension Inspection – many components of a leaf spring suspension are wearing components and require replacement due to use.
• Leaf Spring suspension: pages 66 – 69
• Torflex® suspension: pages 70 – 72
Due to ongoing stress, suspension component evaluation and torque checks should be performed during an annual service.
Suspension Fastener Torque Values
Item
Torque (Ft. Lbs.)
Min
Max
Item
3/8-24" U-Bolt
30
50
5/8-11" U-Bolt
7/16-20" U-Bolt
45
70
1/2-20" U-Bolt
70
80
1/2-20" U-Bolt/Hex Nut
45
70
1/2-20" U-Bolt Flange Nut
70
80
Non shoulder type with 9/16" threads
Shackle Bolt
Spring Eye Bolt
Equalizer Bolt
9/16-18" U-Bolt
65
95
9/16-12" U-Bolt Flange Nut
100
120
Dexter Axle Company
Phone: (574) 295-7888
Shoulder Type
Shackle Bolt with 7/16" threads
2900 Industrial Parkway East
www.dexteraxle.com
Torque (Ft. Lbs.)
Min
Max
100
120
Snug fit only. Parts must
rotate freely. Locking
nuts or cotter pins are
provided to retain nutbolt assembly.
30
50
Elkhart, IN 46516
Fax: (574) 295-8666
SERVICE BULLETIN #014
Page 2 of 2
Wheel & Tire Inspection – wheels and tires are a very important and critical component of your running gear system. Consult your trailer
manufacturer for suitable inspection and replacement information to be used with your unit.
Wheel and tire information relative to your Dexter axle: pages 72 – 77
Wheel Nut Torque – Always remember to follow proper torque recommendations when reattaching tire and wheel assemblies onto your unit
Wheel Torque Requirements
Wheel Installation Torque Sequence (Ft. Lbs.)
Wheel Size
Stud
Size
1st
Stage
2nd
Stage
Final
Torque
Cone Nut Degree
12" - 440 BC
1/2"-20
20-25
35-40
60-75
60° Cone Nut
12" - 545 BC
1/2"-20
20-25
35-40
60-75
60° Cone Nut
13" - 440 BC
1/2"-20
20-25
35-40
60-75
60° Cone Nut
13" - 545 BC
1/2"-20
20-25
35-40
60-75
60° Cone Nut
14" - 545 BC
1/2"-20
20-25
50-60
100-120
60° Cone Nut
15" - 545 BC
1/2"-20
20-25
50-60
100-120
60° Cone Nut
15" - 655 BC
1/2"-20
20-25
50-60
100-120
60° Cone Nut
16" - 655 BC
1/2"-20
20-25
50-60
100-120
60° Cone Nut
16" - 865 BC
9/16"-18
20-25
50-60
140-170
60° Cone Nut
16.5" - 655 BC
1/2"-20
20-25
50-60
100-120
60° Cone Nut
16.5" - 865 BC
9/16"-18
20-25
50-60
140-170
60° Cone Nut
16.5" x 9.75" 865 BC
5/8"-18
50-60
120-125
175-225
Special Stud Piloted With 90° Cone Nuts
17.5" Hub Pilot 865 BC
5/8"-18
50-60
100-120
190-210
Hub Piloted With Clamp Ring. 90° Cone Nuts &
Greased Threads
17.5" Hub Pilot 865 BC
5/8"-18
50-60
90-200
275-325
Hub Piloted With Flange Nut
17.5" Hub Pilot 865 BC
5/8"-18
50-60
60-110
150-175
Hub Piloted With Swivel Flange Nut
Please contact Dexter customer service for additional information or if you need further assistance.
Sean Cantzler
Senior Manager, Warranty and Customer Care
Dexter Axle Company
Phone: (574) 295-7888
2900 Industrial Parkway East
www.dexteraxle.com
Elkhart, IN 46516
Fax: (574) 295-8666
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TSB/Document ID: SB014
Replacement Service Bulletin Number:
MFR Communication Date: 2021-11-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
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