Nilfisk-ALTO FLOORTEC R 870 Service Manual page 178

Service Manual – Floortec R 870
Main Broom Drive Hub and Bearing Disassembly/Assembly
BEARINGS
Disassembly
1 Remove the main broom
2 Lift the hopper to the end-of-stroke
Warning! Place a safety rod under the lifted hopper.
3 Remove the main broom driving belt (see the procedure in "Driving Belt Visual Inspection and
Replacement")
4 While keeping the pulley (A) locked, remove the screw (B) and retrieve the washers (C) and (D).
5 Remove the pulley (A) and retrieve the spacer (E) and the key (F)
6 Push the assembly (G) inside the machine, and then retrieve it.
7 In the hopper compartment, remove the snap ring (H).
8 On the machine outer side, with a proper pad and a mallet, push the bearings (I) outside their housings.
Assembly
9 Assemble the components in the reverse order of disassembly
H I
F
G
Main Broom System
B
C
D
A
E
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