Ariens Zoom 42 Operation Manual - Page 19

The Forward Pitch Of The Mower Blades (Figure 9) • Should be 0.0 in. (0.0 mm) to 1/4 in. (6.35 mm) pitched forward. NOTE: This measurement must be taken when the mower blades ends point forward. Forward Pitch of Mower Blades 3 12 1. Adjust the trunnions first and re-take the three measurements required to level and adjust the pitch of the mower deck. These measurements are: a. The distance from the mower blades to the ground. b. The forward pitch of the mower blades. c. The pitch of the mower blades from side-to-side. 2. Repeat step 1 as needed until all three measurements are within the tolerances specified. Forward Pitch = 0.0 in. (0.0 mm) to 1/4 in. (6.35 mm) Front of Mower Deck 1. Mower Deck 3. Ground 2. Mower Blade Figure 9 The Pitch Of The Mower Blades From Side-To-Side (Figure 10) • Should be within 1/4 in. (6.35 mm) as measured on each side of the mower deck. NOTE: This measurement must be taken when the mower blade ends point left and right. Side-To-Side Pitch 3 1 2 1 2 1. Trunnion 2. Mower Deck Figure 11 REPLACING MOWER BLADE Remove (Figure 12) CAUTION: Mower blades are sharp and can cut you. Wrap the blades or wear gloves, and use extra caution when servicing them. 1/4-in. (6.35 mm) from Side-To-Side 1. Mower Deck 2. Mower Blade 3. Ground Figure 10 Adjusting The Mower Deck To Adjust Mower Blade Height And Pitch (Figure 11) NOTE: Adjusting the mower deck will adjust the height and pitch of the mower blades. 1. Block mower blades to prevent rotation. 2. Remove mounting hardware and mower blades from spindles. Install (Figure 12) 1. Install mower blades on spindles with mounting hardware. 2. Torque 5/8-inch nut to 92 to 130 lbf-ft (125 to 176 N•m). GB - 19