Snapper 1800, 2800, 500, 1700, 2700, 400 manual PTO clutch adjustment, Mower Adjustments

Troubleshooting, Adjustment, & Service

PTO clutch adjustment

WARNING

To avoid serious injury, perform adjustments only with engine stopped, key removed and tractor on level ground.

Check the PTO clutch adjustment after every 250 hours of operation. Also perform the following procedure if the clutch is slipping or will not engage, or if a new clutch has been installed.

1.Remove key from ignition switch and disconnect spark plug wires to prevent the possibility of acciden- tal starting while the PTO is being adjusted.

2.See Figure 44. Note the position of the 3 adjustment windows (A) in the side of the brake plate and the nylock adjustment nuts (B).

3.Insert a .012”-.015” (2,5-4mm) feeler gauge (C) through each window, positioning the gauge between the rotor face and the armature face as shown in Figure 45.

4.Alternately tighten the adjustment nuts (B, Figure 44) until the rotor face and armature face just contacts the gauge.

5.Check the windows for an equal amount of tension when the gauge is inserted and removed, and make any necessary adjustments by tightening or loosen- ing the adjustment nuts.

NOTE: The actual air gap between the rotor and arma- ture may vary even after performing the adjustment pro- cedure. This is due to dimensional variations on compo- nent parts, and is an acceptable condition.

6.Check the mower blade stopping time. The mower blades and mower drive belt should come to a com- plete stop within five seconds after the electric PTO switch is turned off.

A

B

B

B

Figure 44. PTO Clutch Adjustment

A.Adjustment Window (Qty. 3, one shown)

B.Adjustment Nut

B

A

C

Figure 45. Adjust PTO Clutch

A.Window

B.Adjustment Nut

C.Feeler Gauge

7.Perform the BLADE BRAKE CHECK found in the MAINTENANCE Section. Mower blades and mower drive belt should come to a complete stop within five seconds after electric PTO switch is turned off.

Mower Adjustments

WARNING

Before checking mower, shut off PTO and engine, remove the key, and allow all moving parts to stop.

CAUTION

DO NOT remove the mower deck baffles. The baffles help prevent grass clippings from becoming airborne and plugging up the engine cooling fins.

A

B

C

Figure 46. Pivoting Gauge Wheel Adjustment

A.Hair Pin (Upper Position)

B.Hair Pin (Lower Position)

C.Gauge Wheel Bracket

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