Kalmar Ottawa t2, Maintenance Manual

Page: 129 / 262

120 9.12 Chassis – 9 Frame, Body, Cab and Accessories
Maintenance Manual Ottawa T2 4x2
The frame rails (3) are reinforced C channels. Front and rear
crossmember weldments (1) (10) are bolted to the frame rail
ends forming a box structure. A rear tie bar angle bracket (9) is
bolted inside the rails beneath the rear crossmember. Skid
ramp weldments (8) are bolted at the outside of the rails, with
skid ramp/rear crossmember mounting brackets (7) bolted un-
derneath, inside the rails.
Front spring hanger and bumper mount weldments (2) are bolt-
ed to the underside of the rails at the front end.
Inverted L-shaped reinforcements (5) are bolted to the outside
of the C channels, stretching from the rear of the cab to the rear
rail ends.
A weldment structure (6) extends downward from each rail re-
inforcement ahead of the rear axle to provide anchor points for
the lower ends of the boom cylinders and mounting for the rear
axle. Boom pivots (4) are bolted inside the rails just forward of
the rail reinforcements, and aligned with holes in the rails.
page –
Diagnosis (Chassis)
Components
• Frame
NOTE
Frame rails are not serviceable. For repair or replacement,
contact Kalmar service department.
Frame rails that are out of shape must be straightened and
properly aligned to restore the vehicle to maximum capacity
and safe performance.
If the cause of misshapen rails is overloading, continuing safely
in such heavy service requires that the rails be reinforced after
reshaping and alignment.
If the failure is the result of too many or improperly located
holes in one or both rails, the frame should be replaced unless
safe practice will permit adding reinforcement.
Always follow the guidelines for adding reinforcement to the
rails and for drilling holes in the rails.
W A R N I N G
Welding produces so much heat that there is a risk of
changing the physical properties of the steel in the
frame rails. If the vehicle may be economically re-
stored to service by means of welding, contact Kal-
mar sevice department, or ensure that best welding
practices are rigorously followed so as to avoid
changing the properties of the steel. Failure to heed
this warning may result in severe property damage.