DIS185SSI4F AIR COMPRESSOR • OPERATION MANUAL — REV. #0 (12/19/16) — PAGE 49
DANGER
NEVER
crawl under the trailer unless it is on firm
and level ground and resting on properly placed and
secured jackstands.
The possibility exists of the trailer falling, thus causing
equipment damage and severe bodily harm or even
death!
DANGER
When performing trailer inspection and maintenance
activities, you must jack up the trailer using jacks and
jackstands.
When jacking and using jackstands, place them so
as to clear wiring, brake lines, and suspension parts
(e.g. springs, torsion bars). Place jacks and jackstands
inside of the perimeter strip on the supporting structure
to which the axles are attached.
DANGER
Improper weld repair will lead to early failure of the
trailer structure and can cause serious injury or death.
DO NOT
repair cracked or broken welds unless you
have a certified welder perform the repair. Otherwise,
have the welds repaired by your dealer.
WARNING
If the trailer is involved in an accident, have it inspected
immediately by qualified personnel. In addition, the
trailer should be inspected annually for signs of wear
or deformations.
TRAILER MAINTENANCE
LEAF SUSPENSION
The leaf suspension springs and associated components
(Figure 71) should be visually inspected every 6,000
miles for signs of excessive wear, elongation of bolt holes,
and loosening of fasteners. Replace all damaged parts
(suspension) immediately.
Figure 71. Leaf Suspension
U-BOLT
LEAF
SUSPENSION
TIE PLATE
AXLE
U-BOLT
LOCKING
NUT
SHACKLE
BOLTS
FRONT
HANGER BOLT
FRONT
HANGER NUT
SHACKLE
NUTS
SHACKLE SUPPORT
BRACKET IS WELDED
TO FRAME
HANGER SUPPORT
BRACKET IS WELDED
TO FRAME
DANGER
Worn or broken suspension parts can cause loss of
control, damage to equipment and severe bodily injury,
or even death!
Check suspension regularly.