Uline H-4189 Mode D'emploi

H-4189, H-4190
π
H-4191, H-4192
WHEEL RISER RAMP
WIDTH
• Measure width needed to accommodate tires. (See Figure 1)
• Uline offers 18 and 24" ramps. If semi has dual wheels, 24"
wide wheel riser ramps are recommended.
HEIGHT
Calculate height needed to elevate trailer tailgate to meet dock.
NOTE: Based on location of rear wheel, trailer tailgate
could rise more than ramp's actual height.
Use steps below to determine required riser height (See Figure 2):
A + B = C
A = Height of trailer + height of riser ramp at center of back
wheel.
B = Measure length from center of back wheel to tailgate and
multiply by rise that corresponds to your ramp and truck sizes:
RAMP HEIGHT 12-19 FOOT BOX TRUCK
6" Tall Add 1/2" Rise Per Foot
8" Tall Add 5/8" Rise Per Foot
12" Tall Add 1" Rise Per Foot
C = Height of tailgate where it meets dock.
LENGTH
Confirm the length will work for your needs and
make your final product selection. (See Product
Selection Chart)
NOTE: Guide is intended for docks with
flat surface. An incline or decline could
affect measurements and product
performance.
PAGE 1 OF 3
1-800-295-5510
uline.com
SELECTION GUIDE
20-26 FOOT BOX TRUCK
Add 5/16" Rise Per Foot
Add 7/16" Rise Per Foot
Add 9/16" Rise Per Foot
MODEL NO.
H-4189
H-4190
H-4191
H-4192
Para Español, vea página 2.
Pour le français, consulter la page 3.
Figure 1
Figure 2
PRODUCT SELECTION GUIDE
WIDTH HEIGHT LENGTH
18" 6" 48"
18" 8" 54"
24" 6" 48"
24" 12" 72"
Dock
Riser Ramp
LEVEL LENGTH
30"
30"
30"
36"
0823 RH-4189