Maintenance

Figure 31

1. Switch

3. Brake lever

2.1/8 inch (3mm) gap needed between switch and brake lever

9.If needed, loosen the screws holding the switch and adjust the switch.

3.Check the condition of the wire harness leads, connectors, and terminals. Clean or repair as necessary.

4.Verify that 12V is present at the clutch connector when the PTO switch is engaged.

5.Measure the gap between the rotor and armature. If the gap is greater than .04 inch (1 mm), proceed with the following steps:

A.Loosen both brake mounting bolts one-half to one full turn (see Figure 33).

Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque.

Electric Clutch Adjustment

No adjustment necessary. However when the clutch brake has worn to the point where the clutch no longer engages consistently, the shim can be removed to extend the clutch life.

Figure 32

1.

Armature

5.

Brake spacer

2.

Field shell

6.

Re-gap shim

3.

Rotor

7.

Brake pole

4.Brake mounting bolt

Removing the Shim:

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. Allow the machine to cool completely before starting these instructions.

2.Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

Figure 33

1. Brake mounting bolt

2. Shim

B.Using needle nose pliers, or by hand, take hold of the tab and remove the shim (Do Not discard the shim until proper clutch function has been confirmed).

C.Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

D.Re-torque each bolt (M6 x 1) to 10 ft-lb (13 N-m) +/-0.5 ft-lb (0.7 N-m).

E.Using a 0.010 inch thick feeler gauge, verify that a gap is present between the rotor and armature face on both sides of the brake pole as shown. (Due to the way the rotor and armature faces wear (peaks and valleys) it is sometimes difficult to measure the true gap.)

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Exmark VT691KA484CA, VT691KA524CA, VT651KA484, VT730EKC524 manual Electric Clutch Adjustment, Removing the Shim
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VT691KA524CA, VT691KA484CA, VT651KA484, VT730EKC524, VT691KA524 specifications

The Exmark VT691KA524, VT730EKC524, VT651KA484, VT691KA484CA, and VT691KA524CA mowers represent some of the most advanced lawn care technology in the market. Each model is designed to deliver professional-grade performance, ensuring lawns are impeccably manicured.

The VT691KA524 features a robust 691cc engine, delivering powerful performance. Its 52-inch cutting deck allows for efficient mowing, making it ideal for medium to large-sized lawns. The mower incorporates Exmark's innovative patented UltraCut deck design, which offers exceptional cut quality and reduced clumping. Additionally, it boasts a high-capacity fuel tank, which is designed for extended operation without frequent refueling.

Another standout model, the VT730EKC524, comes with a 730cc engine, providing even more horsepower. This model supports advanced cooling and air filtration systems that enhance engine life and performance. The VT730EKC524’s fully adjustable cutting height options allow users to customize their mowing experience, ensuring a clean and even cut on various grass types.

The VT651KA484, equipped with a 651cc engine, emphasizes manoeuvrability and ease of use. It features a compact design that allows it to navigate tight spaces. The 48-inch cutting deck still provides a significant mowing width, and the model is also equipped with Exmark’s patented parking brake system for added safety.

The VT691KA484CA and VT691KA524CA are both equipped with the powerful 691cc engine like the VT691KA524. However, they come with unique functionalities that enhance their usability. The -CA variants offer additional features, such as an improved comfort seat and steering controls, making them ideal for extended mowing sessions without fatigue.

All these models feature Exmark’s signature Precision-Theory mower technology. This ensures that the mower maintains a consistent speed and cutting height while preventing scalping on uneven terrain. Furthermore, the mowers are constructed with durable, high-quality materials designed for longevity, ensuring that they can withstand the rigors of regular use.

With their user-friendly operation, advanced technologies, and rugged construction, the Exmark VT series mowers are an excellent investment for anyone looking to maintain an attractive and healthy lawn. Whether you choose the VT691KA524 for its efficiency or the VT730EKC524 for its superior horsepower, each model guarantees professional-quality results.
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