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Unit Dismantling Instructions
1. Remove the filter plugs. Drain the oil from the coupling.
2. Fully unscrew the three socket set screws and remove the collar from the input
shaft.
3. Unscrew the three hex head set screws and spring washers and remove the
pulley sheave from the hub.
4. Unscrew and remove the set screws and spring washers from the hub flange.
Remove the hub from the coupling, taking care to avoid damage to the needle
roller bearings and seal. Discard the gasket.
5.. Remove the socket head cap screws and spring washers, and remove the end
cover. Discard the gasket.
6. Fit a new gasket to the end cover and assemble the cover into casing spigot.
Fit and evenly tighten the socket head cap screws and spring washers.
7. Fit a new gasket to the hub and feed replace hub over the input shaft taking
care to avoid damage to the oil seal and needle roller bearing. To prevent
damage to the seal lip, cover input shaft keyway before assembly with
masking tape extending beyond the shaft end and fold the free end back on
itself to provide a "grip". Keep the tape lightly tensioned as the oil seal is fed
along the shaft until it is located on the seal journal and the hub is correctly
located in the casing spigot, then carefully pull the tape from the hub/input
shaft assembly. Fit and evenly tighten the set screws and spring washers.
8. Mount the selected Type QD sheave on the hub and secure with the three hex
head set screws and spring washers.
9. Assemble the collar on to the input shaft, ensure that the long socket set screw
is located in the hole in the shaft with the two short screws each side of the
keyway.
Filling Instructions
Fluid drive couplings are shipped without oil and must be filled after assembly and
before operation as follows:
1. Remove one filter plug.
2. Turn the coupling by hand to bring the plug hole to the 12 o'clock position,
then turn the coupling back to bring the plug hole to the recommended fill
angle from T.D.C (See Section 3.3 Maintenance of Fluid Couplings in this
manual), and add oil to bring level up to plug hole.
3. Ensure that the Dowty seal is in good condition and refit the plug. Tighten
securely.
DO NOT MIX OILS. CHECK LEVEL WHEN COLD
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