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GENERAL MAINTENANCE
AERATOR MAINTENANCE
TO KEEP THE AERATOR IN GOOD
OPERATING CONDITION, PERFORM
THE FOLLOWING:
• When replacement parts are required, use genuine
Classen parts or parts with equivalent characteristics
including type, strength, and material. Failure to do so
may result in product malfunction and possible injury
to the operator and/or bystanders.
• Any warning decal that becomes illegible should be
replaced immediately. (See Pg. 5.)
• Do not operate equipment without shield(s) in place.
Do not make any adjustments or perform any
maintenance while the engine is running.
• Thoroughly clean all tines inside and out when
aerating is completed and apply a light coat of oil to
prevent rust on tines.
• Always lubricate Aerator each time it is put into
service. Wipe off lubrication fittings before and after
each lubrication. The number of lubrication fittings
vary depending on model of Aerator.
Model CA-18
- Qty 2, one in each rear wheel assembly.
Models TA-19D/TA-26D (water drum models) - Qty 3, one in
each rear wheel assembly and one on the idler/clutch arm pivot
bearing. (See Fig. 2.)
Models TA-19/TA-26 (front tire models) - Qty. 5, one in each
wheel assembly and one on the idler/clutch arm pivot bearing.
(See Fig. 2.)
Models TA-17D/TA-25D - Qty. 4, one in each wheel assembly
and one in each idler/clutch arm pivot bearing. (See Fig. 2.)
• Check roller chain(s) for tightness. Follow these steps:
Model CA-18
(See Fig.3.)
1. Disconnect spark plug.
2. Take off pulley guard by removing two nuts and
lock washers.
3. Loosen nut (B) by turning counter-clockwise until nut
comes in contact with head of bolt (A).
4. Tighten bolt (A) until chain is tight between front axle
sprocket (D) and tine assembly sprocket (E).
(See Note Opposite Page)
5. Retighten nut (B) by turning clockwise against
lock washer (C).
6. Replace pulley guard, nuts and lock washers and
retighten nuts.
Pulley Guard
Fig. 2
Idler Clutch Arm
(Right Side)
• Keep drive belt(s) free of oil and dirt.
Models
TA-17D/TA-25D - If belts slip due to normal belt
stretch, engine can be adjusted forward within slotted holes to
tighten belts.
• Check roller chain(s) for wear. Apply a light coat of
No. 30 oil or penetrating chain lubricant to keep the
chain(s) clean and in proper running order.
A
Fig. 3
B
C
D
E
Fig. 4
Main Frame Top Flat (Left Side)
Main Frame (Left Side)
Model TA-17/TA-19/TA-25/TA-26 (See Fig. 4.)
1. Disconnect spark plug.
2. Take off pulley guard (see Fig. 2) by removing bolts,
etc. which attach it to the frame.
3. Loosen the bolts, nuts, lock washers, and flat washers
(Key 4) to allow movement of the pillow block
bearings only (Key 5). Loosen nuts only, do
not remove.
4. Loosen and unthread the two 5/16'' nuts (Key 2) down
to top of chain tightening bracket (Key 3).
5. Turn the tap bolts (Key 1) evenly clockwise so jack
shaft stays level with frame until chain(s) is/are tight.