VARISCO M Series Instructions For Use And Maintenance Manual

VARISCO M Series Instructions For Use And Maintenance Manual Manual pdf 20 page image

Varisco S.p.A.Z.I. Nord - Terza Strada, 9 - 35129 PADOVA – ITALYTel.+39.049.8294111 Email: export@variscospa.comFax+39.049.8076762 Web: www.variscospa.com209.3.4 JOINT TYPE SN31. Remove the screws (6) that hold the joint to the rotor.2. Extract the propeller shaft (6b) in the direction of the black arrow.SN3If the pump is equipped with this kind of joint, intake of fluid from the outlet is not possible (onlycounterclockwise rotation is allowed).This kind of joint has no spare parts available. In case of malfunctioning it shall be fully replaced.9.3.5 JOINT TYPE SN4This type of joint shall be almost completely disassembled to be removed from the rotor.Follow these steps:1. Remove the two clamps (08) that hold the sleeve.2. Force the rubber sleeve backwards (09) in the direction of the black arrow.3. Remove the internal flat sleeve (10) by operating on the larger part, then move it in thedirection of the black arrow.4. Remove the grub screw (11).5. Move the metallic cover (12) backwards in the direction of the arrow. The bushes and pin(13) will be visible.6. Beat the pin with care, taking care not to damage the bell (14). Then, if necessary, the pinand the bushes can be replaced.7. Pull the sphere in the direction of the black arrow. Since it is integral with the propeller shaft(15), they’ll both be free of the joint. Then, the hexagonal-head screws that hold the bell tothe rotor (or hollow shaft depending on the joint involved) will be visible.8. Unscrew the screws (7). The bell will be completely free of the rotor (or hollow shaft, asmentioned above).SN4IMPORTANT: Bushes increase the life of the system but are integral with the pin, hence when thepin is replaced, they shall always be replaced as well.