
WORKSHOP MANUAL
100T / 150T / 175T
Winget Concrete Mixers
From 2015 Onwards
Issue 1 2021
new split link. The open end of the split end should point away from the
normal direction of rotation, which is anti-clockwise when looking directly at
the chain. Check and adjust the chain tension. (See bevel pinion shaft and
housing). Refit the chain guard.
Bevel Pinion Shaft and Housing
Follow the procedures described earlier and remove the drum, bevel gear
guard and disconnect the countershaft bevel pinion drive chain.
Rotate the trunnion until it reaches its highest point and lock in place. Remove
the gib head key securing the chain wheel to the bevel pinion shaft. Remove
the bevel pinion guard, release the lockwashers and remove the setscrews,
packers and shims securing the bevel pinion housing. At this point the
housing should either be supported by a second pair of hands, strapped or
supported in some other manner to prevent it dropping down sharply and
causing damage to the casting, it will otherwise only be secured by the loose
fitting retaining plate and chain wheel.
Remove the nuts and washer from the two bolts retaining the bevel pinion
housing adjusting plate. Using a soft faced hammer knock the bevel pinion
shaft through the chain wheel until it is possible to remove the chain wheel.
Remove the bolts through the retaining plate and lift the housing out of the
trunnion.
Clamp the housing in a soft jawed vice and remove the gib head key retaining
the bevel pinion and pull off the pinion.
Remove the circlip from the groove within the housing and using a soft faced
hammer knock the shaft and bearings out of the housing. The bearings can
now be removed from the shaft.
Before fitting new bearings carefully remove the seals from the bearings and
pack the bearings with good quality grease, refit the seals, do not completely
fill the bearings with grease leave some room for expansion as the grease
warms up in service.
To reassemble secure the bevel pinion shaft into a soft jawed vice. Using the
correct size of bearing tube and a soft faced hammer fit the bearings to the
shaft. Note the larger of the two bearings is fitted to the longer shank of the
shaft. Remove the shaft from the vice and using the vice support the bevel
pinion housing. Using the correct size of bearing tube and the soft faced
hammer knock the shaft fully into the housing. Fit the retaining circlip into the
groove within the housing and check the shaft turns freely.
Assemble the bevel pinion to the shaft, fitting the gib head key. The pinion is
fitted to the longer shank of the shaft. If correctly assembled the threaded