Engineering Analysis · OVERLOAD · Opened 1986-03-10 · Closed 1987-10-01
Investigation
Action number
EA86009
Type
Engineering Analysis
Open date
1986-03-10
Close date
1987-10-01
Manufacturer
Tiffin Motorhomes, Inc.
Affected makes
TIFFIN
Affected components
SUSPENSION
Affected model years
1986
Affected (make, year) variants
1
Summary
SUMMARY OF INFORMATION FROM MANUFACTURER:TIFFIN USES THE CHEVROLETASTRO MINI VAN FOR 21 FOOT MICRO-MINI ALLEGRO MOTORHOME.TIFFINREPLACES THE REAR AXLE OF THE STOCK ASTRO WITH A CHEVROLET C-10LIGHT TRUCK REAR AXLE ASSEMBLY TO INCREASE ITS WEIGHT RATING TO7,000 POUNDS. (ASTRO HAS A 5,600 POUND GVWR).ANALYSIS:THE ALLEGRO IS FABRICATED WITHOUT DURABILITY OR COMPLETEBRAKE TESTING.TIFFIN LOADS A STACK OF 4'X8' PLYWOOD SHEETS ON THEALLEGRO CHASSIS REAR FRAME RAILS FOR A FEW HOURS TO CHECK FOR SAG.IF NO PERMANENT SET IS FOUND THE VEHICLE IS DEEMED SATISFACTORY AT7,000 POUNDS GVWR.STATUS:CLOSING MEMO TO (H) 9/9/87.===