Removing The Drive Assembly (Chain-Drive Models); Replacing The Drive Assembly (Chain-Drive Models) - Pentair PR AQUA ROTOFILTER Installation And Operation Manual

SECTION 14: DRIVE ASSEMBLY MAINTENANCE
4. Adjust the height of the motor and gear using the
tension bracket fasteners on the left side of the
oil bath. See Figure 64.
Figure 64. Tensioner bracket fasteners
5. Retighten the motor mount fasteners.
14.5 Removing the Drive Assembly
(Chain-Drive Models)
Always follow the proper shutdown procedure
(Section 8.2 or 8.3) before performing any
maintenance on the Rotofilter.
1. Remove the motor from the gear. The motor is
attached with four bolts on the bottom.
2. Loosen (do not remove) the gear mount fasteners
on the right side of the drive assembly (behind
the oil bath). See Figure 65.
Figure 65. Gear mount fasteners
3. Lower the gear using the tension bracket
fasteners on the right side of the drive assembly.
See Figure 66.
Figure 66. Tension bracket fasteners
4. Remove the chain.
5. Remove the gear. Remove the mounting
fasteners and lift up to uncouple from the
tension bracket.
6. Drain the oil bath.
14.6 Replacing the Drive Assembly
(Chain-Drive Models)
Follow this procedure only after completing the
procedure listed in Section 14.8
Always follow the proper shutdown procedure
(Section 8.2 or 8.3) before performing any
maintenance on the Rotofilter.
1. Slide the gear onto the tension bracket.
2. Attach the gear to the drive assembly plate.
Leave the fasteners loose enough that the gear
can slide up and down.
3. Check the vertical alignment of the 2 sprockets.
The sprockets must align vertically to prevent
overstressing of the chain. Place a level across
the face of both sprockets. If adjustment is
necessary, loosen the idler (top sprocket)
bushing and adjust the idler sprocket.
Tighten the bushing.
4. Attach the chain to the lower sprocket.
PR Aqua Rotofilter™ Drum Filter Installation and Operation Manual
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