Multiquip Concrete Saw SP-6457 TD - Manual (Page 46)

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2. Loosen the jam nut on the Single Point Belt Tension Bolt.
Fig. 28 — Single Point Belt Tension Bolt
3. Adjust drive belt to the desired tension. DO NOT over tighten.
4. Tighten the Engine Mount Lock Bolt.
5. Turn the Single Point Tension Bolt until the head of the bolt no longer
touches the frame. Tighten the jam nut to prevent the bolt from turning.
Replacing the Blade Shaft Belt:
(See Fig. 27 & 28)
1. Remove the lower belt guard from around the Blade Shaft sheave.
2. Loosen the engine mount lock bolts.
3. Loosen the single-point belt-tensioning bolt to allow the engine to roll
forward.
4. Slide the belt off of the engine sheave and pull the belt down around
the Blade Shaft sheave.
5. Slide the belt off the top of the Blade Shaft sheave.
6. Reverse the order to install a new belt.
Replacing the Jackshaft Belt
(See Fig. 29)
1. Remove the Belt Guard.
2. Loosen the Rotary Tensioner Pulley.
3. Replace the Jackshaft Belt.
4. Adjust the Rotary Tensioner.
Single Point Belt
Tension Bolt
Jam Nut