Winget 200TM, Workshop Manual

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WORKSHOP MANUAL
Winget Mechanically Fed Mixers
Models: 200TM
From 1998
Trunnion Removal/Replacement
Remove the drum, engine housing lid, top plate, chain guards and infill plate in the
engine housing. Remove the upper and lower tilting chain guards and remove the
tilting chain. Remove the engine drive chain, undo and remove the two setscrews
retaining the journal and the two nuts securing the front bearing, attach lifting suitable
equipment to the trunnion and take the weight, remove the front bearing.
Note, to remove the trunnion fully it will be necessary to rotate the trunnion as it is
being lifted in order for it to clear the engine housing.
Slide the trunnion towards the engine housing until it can be seen that the travel stop
pegs welded in the front leg and trunnion end plate are clear of each other, rotate the
trunnion and move backwards and upwards to clear the engine housing.
Place the trunnion on a suitable surface and remove the bevel pinion housing and
journal as previously described.
When replacing a 200TM trunnion ensure it has three travel stop pins, part no
513310000 welded into the front plate.
Reverse the procedure to rebuild the trunnion and refit it into the mixer referring to
the relevant sections to set up bevel pinion, journal, front bearing, drum etc.
Hydraulic Hopper Ram
The single acting hopper ram is retained via two pivot pins, to remove fully raise the
hopper and engage the hopper support. Disconnect the hydraulic hoses, note later
rams have a return hose vented back to the hydraulic tank whilst earlier rams have a
small breather hole open to atmosphere. Support the weight of the ram and remove
both pivot pins lift the ram clear of the mainframe.
If installing a seal kit note that later rams vented back to tank have additional wiper
and pressure seals fitted in the cylinder end cap. Also some machines do not have a
loose travel restrictor in the form of a small spacer installed on the piston rod.
Reverse the procedure to refit the ram coating the pivot pins with anti-seize
compound and not forgetting to install the grease nipples, straight into the cylinder
base, 90 degree angled into the piston rod.
Refit the hoses, start the engine or motor and slowly extend the piston via the control
valve, the movement may be ‘jerky’ as the system will be contaminated with air, refit
the upper pivot pin and continue to extend the rod to raise the hopper, disengage the
hopper support and lower the hopper. Stop the engine motor and top up the hydraulic
oil tank. Start the engine/motor and lower and raise the hopper a number of times to
fully expel all the air from the system.