241 SOUTH SEHVI(;t HOAD WEST
GRIMSBY. ONTARIO L3M 1Y7
TELEPHONE: (416) 945-2234
FACSIMILE: (416) 945-5906
REYCO
CANADA, INC.
MODEL 21B SERIES MAINTENANCE RECOMMENDATIONS
The model 21B series trailer suspensions, by design, require an absolute minimum of maintenance. However they do
require periodic checks to assure maximum performance and reliability.
We recommend that the following checks be made:
a)
During pre-delivery inspection
b)
After the first 1600 km (1000 miles) of operation
c)
After each additional 80,000 km (50,000 miles) of operation.
1.
Check U-bolt nuts to assure 410-445 NI4.M. (300 - 325 Ft. Lbs.) Torque.
2.
Check equalizer shaft fasteners as follows:
21B-FAB - All Spreads - 1-1/4" Nut
780 - 850 N.M. (575 - 625 Ft. Lbs.) Torque
21B-F,W,WB - 49" Spread - 3/4" Cap Screw
270 - 305 N.M. (200 - 225 Ft. Lbs.) Torque
21B-F,W,WB - 54" - 65-1/2" Spread - 2-1/2" Nut
410 - 445 N.M. (300 - 325 Ft. Lbs.) Torque
21B-F,W,WB - 72" - 109" Spread - 1-1/2" Nut
270 - 305 N.M. (200 - 225 Ft. Lbs.) Torque
3.
Check torque arm bolt nuts 1" to assure 216 - 270 N.M. (160 - 200 Ft. Lbs.) Torque.
4.
Check torque arm clamping nuts to assure:
1/2" - 110 N.M. (80 Ft. Lbs.) Torque
3/4" - 236 - 270 N.M. (175 - 200 Ft. Lbs.) Torque
Where moveable clamps are used, insure that the clamp is positioned correctly i.e.: clamping legs are centered over
the slot in the end tube and the detents are located correctly at the end of the tube.
5.
Check spring retainer nuts 1/2" to assure 110 N.M. (80 Ft. Lbs.) Torque.
6.
Check all bushings for proper fit and function also to determine if replacement is required.
7.
Check all hanger and hanger bracing welds to assure rigid fastening to the frame.
8.
Check all suspension axle component welds for signs of failure.
9.
Check fit of springs in hangers and equalizers.
10.
Check suspension alignment.
In addition to checking alignment at the recommended intervals, axle alignment should be checked when any of the
following conditions prevail:
1.
Discovery of loose suspension fasteners or components. (Loose is defined as any torque below the above
recommended values.)
2.
Discovery of elongated holes in a suspension component.
3.
When bushings are replaced.
4.
When excessive or abnormal tire wear is detected.
To insure an accurate torque reading, the torque wrench used to check torque must provide a correct measurement,
so the wrench should be calibrated periodically. Also, the nut and bolt threads should be clean (free of any dirt, grit, rust,
etc.) and lightly oiled with common motor oil (no special sprays or antiseize agents.)
Failure to maintain specified torque values and/or replace worn parts can result in an adverse affect on the stability
and safety of the vehicle.
To maintain your warranty and obtain the best possible performance from your Reyco suspension
system USE ONLY GENUINE "REYCO" replacement parts.
Subsidiary of Reyco Industries, Inc. • Springfield, Missouri 65802
Form #C21B587 / Jan. 92
(page 3-1350)
