Belt Installation, Cam Assembly Adjustment

2-5 Belt Installation

Loosen the (2) bolts that secure the gear box assembly P#(A0429) to the PTO mount plate (Figure 2-5a). Loosen the adjustment bolt P#(K0348) until the gear box assembly is at its far left adjustment (the gear box is moved towards the mower’s engine pulley). Connect the kevlar cord belt from the engine pulley to the lower gear box pulley (Figure 2-5b).

To tension the drive belt, turn the adjustment bolt clockwise until there is 1” of deflection, with 10-11 lbs. of pressure between the engine pulley and the gear box pulley.

Once the correct tension of the belt is achieved, tighten the (2) bolts that secure the gear box assembly.

Adjustment Bolt

Figure 2-5a.

P#(K0326) and pull the “L” end of the rod out of its hole in the cam assembly. The tension rod may then be screwed out to tighten the belt or screwed in to loosen the belt. Replace the “L” end into the top hole in the cam and replace the hair pin clip. Adjust the cam stop bolt P#(K1159) to allow the cam to rotate slightly over center when the blower is disengaged (Figure 2-6).

Figure 2-6.		Cam Assy.
Figure 2-6.

	Cam Stop	Tension Rod
	Bolt	Tension Rod
	Bolt

2-7 Lower Frame To Frame Bracket Installation

Figure 2-5b.

PTO Mount Plate

Gear Box Assy.

Using (2) ½”-13 u-bolts P#(K0288) and (2) ½”-13 nyloc nuts P#(K1247) , attach lower frame to the left and right frame mount brackets as shown in Figure 2-7. Make sure the lower horizontal tube is centered in regards to the lower frame mount brackets. The lower frame stiffening bracket is to be positioned towards the engine mower’s engine.

Figure 2-7.

Lower Frame

Left Frame

Mount BracketRight Frame

Mount Bracket

Engine Pulley

2-6 Cam Assembly Adjustment

The cam assembly P#(A0422), which controls the blower belt tension, comes from the factory pre-adjusted. If the belt is too tight or becomes too loose, remove the hair pin clip P#(K0099) from the belt tension rod

Lower Frame Centered

In Regards To U-Bolts

Mounted To Frame Brackets

12031303 specifications

The Gravely 12031303 is a robust and versatile zero-turn mower designed for both residential and commercial use. This mower stands out due to its combination of power, precision, and user-friendly features, making it an excellent choice for professionals and homeowners alike.

One of the primary features of the Gravely 12031303 is its powerful engine. Equipped with a 23 horsepower Kawasaki engine, this mower offers superior performance and reliability. The engine delivers impressive torque, allowing it to tackle thick grass and tough terrain with ease. This power translates into faster mowing times, ensuring that you can cover large areas efficiently.

The cutting deck on the Gravely 12031303 is another highlight, featuring a 48-inch fabricated deck made from heavy-duty materials. This not only ensures durability but also provides excellent cutting performance, resulting in a clean and even finish. The deck comes with adjustable cutting heights, allowing users to customize their mowing experience based on the type of grass and desired appearance.

The zero-turn capability is a game-changer for maneuverability. The dual-lever steering system allows the operator to make quick turns and navigate around obstacles with precision. This is particularly beneficial for those mowing in tight spaces or intricate landscapes, where traditional mowers may struggle.

In terms of comfort, the Gravely 12031303 does not disappoint. It features an ergonomic seat with ample cushioning, providing support during long mowing sessions. The controls are intuitively placed, allowing for easy operation without straining. Additionally, the mower is equipped with a large fuel tank, minimizing the need for frequent refueling and allowing for uninterrupted mowing.

Safety is also a priority with the Gravely 12031303. It comes with features such as a rollover protection system and easy-access controls that enhance operator safety. The mower's construction ensures stability, reducing the risk of tipping on uneven terrain.

In summary, the Gravely 12031303 combines power, durability, and comfort to deliver an exceptional mowing experience. With its powerful engine, quality cutting deck, zero-turn technology, and focus on user comfort and safety, it is a standout choice for anyone looking to achieve pristine lawns efficiently. Whether you're a homeowner with a sizeable yard or a professional landscaper, the Gravely 12031303 is designed to meet your mowing needs effectively.