Briggs & Stratton 150Z Series manual Service & Adjustments, Ground Speed Control Lever Adjustment

SERVICE & ADJUSTMENTS

GROUND SPEED CONTROL LEVER ADJUSTMENT

The control levers have three adjustments:

To Adjust Control Lever Height: Pull the levers in across the operator’s lap to their DRIVE positions. Loosen the mount bolts (D, Figure 32) and raise or lower the levers to the desired position. Tighten the mounting bolts.(D).

To Adjust Control Lever End Gap: The control lever end gap (C, Figure 33) should be adjusted so that the levers do not contact each other when placed in DRIVE positions. Loosen the jam nut (A, Figure 32) and adjust the length of the carriage bolt (B) so that the levers do not contact each other. Repeat on the opposite side. Tighten the jam nut (A) to lock the carriage bolt in position.

To Adjust Operator Clearance: The space between the operator and the control levers can be increase by removing the lower mounting bolt (D, Figure 32), pivoting the lever forward, and reinstalling the capscrew through the control lever and forward slot (C). Repeat with the other ground speed lever.

C

A

D

B

E

Figure 32. Control Lever Adjustment

A.Jam Nut

B.Carriage Bolt

C.Forward Slot

D.Mount Bolts

E.Knob

SPEED BALANCING ADJUSTMENT

If the rider veers to the right or left when the ground speed control levers are in the maximum forward position, the top speed of the right lever can be balanced by turning the adjustment knob (E, Figure 32). Loosen the jam nut and turn the knob COUNTERCLOCKWISE

to increase speed or CLOCKWISE to decrease speed. Tighten the jam nut when complete.

C

CUTTING HEIGHT ADJUSTMENT

To increase the mower cutting height (raise the mower deck), press the top of the mower cutting height switch (A, Figure 33) To decrease mower cutting height (lower the mower deck), press the bottom of the switch. Mower cutting height range is 3-3/4” to 1-1/2”. The cutting height gauge indicates the position of the mower deck.. The cutting height gauge (B) is located on the front of the rider, just behind the driver’s left leg.

PTO CLUTCH ADJUSTMENT

See CHECK / ADJUST PTO CLUTCH in the Maintenance Section.

	A
	HCutting
	eight
B	3
	4	HighCut
	2
	1
	Low Cut

Figure 33. Cutting Height Adjustment

A.Cutting Height Adjustment Switch

B.Cutting Height Gauge

C.Control Lever End Gap

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