
Section III: Maintenance
Page 84
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REV. 1 - 12/08
fluid is at operating temperature. Cold oil is more dense and will
give a false indicator gauge reading.
Cold temperatures can cause hydraulic oils to thicken and adversely affect
the hydraulic functions of your carrier. If this is the case, it will be necessary
to change the hydraulic oil to maintain maximum system efficiency. A
hydraulic oil such as Mobil DTE 11M or Conoco AW Hydraulic Fluid MV 32
can be used to replace the factory installed oil or it can be added to the
hydraulic oil in your factory system.
If a cylinder seal leaks, disassemble the cylinder and find the cause of the
leak. Small scores caused by chips or contaminated fluid can usually be
worked out with fine emery cloth to avoid repetition of the trouble. Whenever
any seal replacement is necessary, it is always advisable to replace all
seals in that component. These seals are available in kits. Also, thoroughly
clean all components before reassembly.
The carrier deck hold downs and cylinder saddles are mounted to the truck
chassis by bolts. We recommend that these bolts be inspected within the
first 30 days and inspected and retorqed every 90 days thereafter. Replace
any broken or damaged bolts immediately. Refer to chart on the following
page.
The deck and/or rails of your carrier may have been built from high strength
aluminum which has been carefully assembled and polished in our factory.
To keep it clean and free of dirt, use any non-abrasive soap or detergent
recommended for automotive finishes. Use a soft cloth or sponge and finish
with a thorough rinsing. Drying with a soft cloth or chamois will prevent
spotting or streaking. A coat of automotive wax is recommended.
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