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Cub Cadet SRC 621 User Manual

Cub Cadet SRC 621
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16
Figure 25
Place the new belt over the transmission pulley.
Start the belt in the pulley groove and rotate the
pulley until the belt is seated in transmission pulley.
Place the belt between the idler pulley and the belt
keeper bracket.
Using a pair of pliers, rotate the belt keeper bracket
so that it snaps into slot on the idler bracket.
Tighten the idler pulley bolt and lock nut half a turn.
Place the belt between the two pulley halves on the
crankshaft. Make sure to route the belt inside the
belt guard pin. See Figure 26.
Figure 26
IMPORTANT:
When replacing the belt, do not disas-
semble the lower pulley assembly.
Pinch both sides of the belt together so that the belt
is not in the pulley groove, and the lower pulley can
be pushed towards the engine. See Figure 27.
Figure 27
Pivot the control arm back to its original position
and reinstall the six-speed cable into the slot. See
Figure 28.
Check and make sure the belt is routed inside the
pulley halves and the belt guard pin.
Figure 28
Reinstall the bolt securing transmission to rear
mower housing.
Pivot the baffle back to its original position and
secure with three hex screws earlier removed.
Lightly lubricate the inside of the blade adapter and
reinstall the spacer, wave washer, blade adapter
assembly, and blade in the correct order.
Tighten the hex bolt to secure the blade to torque:
450-600 in. lbs.
SECTION 9: OFF-SEASON STORAGE
The following steps should be taken to prepare lawn
mower for storage.
Clean and lubricate mower thoroughly as described
in the lubrication instructions.
We do not recommend the use of pressure
washers or garden hose to clean your unit. They
may cause damage to electric components,
spindles, pulleys, bearings or the engine. The use
of water will result in shortened life and reduce
serviceability.
Refer to engine manual for storage instructions.
Coat mowers cutting blade with chassis grease to
prevent rusting.
Store mower in a dry, clean area. Do not store next
to corrosive materials, such as fertilizer.
NOTE: When storing any type of power equipment in
an unventilated or metal storage shed, care should be
taken to rust-proof the equipment. Using a light oil or
silicone, coat the equipment, especially cables and all
moving parts.
Belt
Lower
Crankshaft
Pulley Half
Belt
Lower
Pulley
Half
Upper
Pulley
Half
Belt
Tab
Guard Pin
Belt
Lower Pulley
Belt
Guard Pin
Half
Six-Speed
Cable Slot
Control
Arm

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Cub Cadet SRC 621 Specifications

General IconGeneral
Mulch CapableYes
Side DischargeYes
Bagging CapableYes
Deck MaterialSteel
EngineCub Cadet® OHV
Starting SystemRecoil
Drive SystemSelf-Propelled
Drive TypeRear-Wheel Drive
Cutting Width21 inches
Cutting Height3.75 in
Wheel Size (Front)8 inches
Wheel Size (Rear)11 inches
Grass DisposalMulch, Side Discharge, Bagging
Warranty3-Year Limited

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