MULTIQUIP MAYCO Series Operation Manual page 41

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 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 and suspension parts (i.e., 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. If not, 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.
MAYCO C30HDGA CONCRETE PUMP • OPERATION MANUAL — REV. #1 (09/09/19) — PAGE 41
TRAILER MAINTENANCE
TORSION SUSPENSION
The mounting bracket and associated components
(Figure 32) 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 immediately.
5/8"-18 X 2"
MOUNTING
MOUNTING
BRACKET
SPINDLE
TORSION
ARM
TORSION
BAR
Figure 32. Torsion Suspension Components
DANGER
Worn or broken suspension parts can cause loss of
control, damage to equipment and severe bodily injury,
even death!
Check suspension regularly.
BOLT
AXLE
TUBE
5/8"-18
NYLOC NUT
GRADE C