Page 848 - Foton Workshop Manual - Auman EST-M
P. 848

TR-34                 Transmission and Control Mechanism - Manual Transmission

              Precautions
              1. Precautions for use

              a. Correctly adjust the clutch to disengage completely and engage completely.
              b. Load according to the vehicle’s load capacity, avoid overloading.
              c. Initial care and maintenance should be performed in accordance with the vehicle's instructions.
              d. Avoid not warm up after start up the vehicle, avoid driving the vehicle before the water temperature reaches
              the driving temperature, and the pressure reaches the standard pressure.
              e. Avoid high-speed with low gear or shift to low gear at high speed, do not shift improperly.
              f. Avoid shift impact, avoid pushing or pulling hardly, or beating the shifter lever when shifting.
              g. The reverse gear should be put into when the vehicle is stopped.
              h. Avoid neutral coasting downhill.

              2. Precautions for disassembly
              a. Before removing the transmission assembly from the vehicle, always park the vehicle in a flat and secure
              place with the transmission in the neutral position of the low gear, turn off the engine and turn off the main
              power switch, wedging the front and rear wheels.
              b. Before disassemble the transmission assembly, thoroughly clean the transmission housing.
              c. Disassembly of the transmission must be carried out in a clean place, to avoid the dust or other debris from
              entering the transmission, otherwise it will aggravate the wear and damage the bearings.
              d. The bearings should be removed with the use of special tools, which is easy to remove, without damaging
              the bearings.The bearings removed need to be carefully cleaned.
              e. When disassembling each sub-assembly, put all the parts on the clean workbench in the order of removal, so

              as to avoid the loss of parts and facilitate the assembly.
              f. When removing the circlip, use the circlip plier , which is easy to remove without damaging the circlip.
              g. When using tools to remove, be sure to pay attention to the size of the force applied to the shaft or shell
              parts, etc., which can not damage the parts.Some parts are forbidden to be disassembled, and it is absolutely
              forbidden to apply external force to the moving driven menber.During removal, be sure to use a softer hammer,
              rod and hammer.
              3. Precautions for assembly
              a.  Before assembly  the  parts  must be thoroughly cleaned and dust and debris can not be brought into the
              transmission case.
              b. The residue of paper pad and sealant on each bonding surface must be cleaned.
              c. When assembling parts, make sure that the gears, thrust washers and bearings are in the correct orientation.
              d. All thrust washers, needle bearings and synchronizer cones must be cleanly lubricated during assembly to
              avoid damage to the parts due to dry friction.
              e. When assembling the second shaft assembly  check the axial clearance of each gear for too small or too
              large clearance.
              f.  According to the repair procedure, all the self-locking nut,  oil seal and O-ring must be replaced.
              g. When  reassembling  the  synchronizer  ring  and  synchronizer  cone,  pay  attention  to  their  position  and
              orientation to ensure that the installation position and orientation do not change.
              h. When reinstalling, ensure that the lubricant filling hole not blocked  no rust, bumps and cracks  and other
              defects  on  each  gear  surface  Clean  the  synchronizer  cone  ring  and  apply  a  clean  lubricant  to  the  working
              surfaces of the synchronizer cone ring, oil seal, and bearing.
              i. Tighten all bolts, plugs, nuts, gearswitches, etc., with specified torque.
              j. When installing the intermediate shaft gear, first apply a layer of lubricant evenly around the intermediate shaft.
              k. When  assembling  oil  seals  and  bearings,  do  not  knock  on the bearings  directly  with a  hammer  and  it
              must be installed using special tools.
              l. Check the seal lip for damage, if any, replace with new.
              m. When parts need to be replaced, use the same type of accessories for the original transmission.



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