How do I adjust brake pedal on my mower

adjustable pedal relay Adjustable Pedals System Components
The adjustable pedals system consists of the following components:
• The adjustable pedals position switch
• The driver seat module
• The adjustable pedals relay
• The adjustable pedals motor
• The brake pedal position sensor
Adjustable Pedals System Operation
The adjustable pedal system is controlled by the adjustable pedal switch or the driver seat module and operation can occur only while the transmission selector lever is in the PARK position. The adjustable pedal assembly is moved forward or backward by a motor, which is fixed to the brake pedal actuator with a drive cable to the accelerator pedal actuator. The adjustable pedal motor is operated by 2 motor control circuits from the adjustable pedal relay. In an inactive state, both of the motor control circuits are closed to the ground contacts within the relay. The relay coils may be energized by the relay control circuits from the driver seat module or the adjustable pedal switch. When a relay coil is energized, the motor control circuit is switched to the battery voltage supply contact. The adjuster motor is bi-directional and the direction of the pedal assembly travel is determined by which of the motor control circuits is closed to battery voltage, while the other remains grounded.
The driver seat module monitors the location of the adjustable pedals using the brake pedal position sensor. The brake pedal position sensor is supplied with 5-volt reference and ground circuits from the driver seat module. The position sensor signal circuit is referenced from ground within the driver seat module. The signal voltage monitored by the driver seat module ranges from 0.39-4.58 volts and is determined by the wiper location on the resistor within the position sensor. The position sensor circuit voltage level is used by the driver seat module to determine the position of the adjustable pedals when storing or recalling memory position settings.

brake light switch out of adjustment

Depending on the model and manufacturer of your mower, but it seems like the brakes are the problem.
I have a Murry and it has one disk brake on the rear wheel shaft. The master mechanism for this disk brake needed to be cleaned of dirt and grass clippings. In my case, this helped but brakes only 50% effecient so I use reverse when on an incline.

Try adjusting the brakes first. There is an adjustment nut in the pedal that sets the up height for the pedal. Might want to look into raising the pedal that way. You may not have enough brake fluid in the master cylinder. Check and adjust fluid level if necessary.

Did you adjust the brake light switch correctly? To adjust the brake light switch, first press the brake pedal down a few inches, then pull the switch plunger rod out of the switch toward the brake pedal arm, as far as you can without using excessive force. Next, return the brake pedal to the pedal stop position against the pedal stop and pull the brake pedal toward the rear to push the brake light switch actuating plunger rod into the switch housing limited by the travel of the brake pedal arm rear travel stop position. This procedure automatically adjusts the brake light switch correctly.
If the brake lights still don't turn off with the brake pedal released, check the brake pedal arm for sticking or binding that is preventing the brake pedal arm from returning fully to the pedal stop when the brake is released.

brake light switch on the pedal under the dash needs ajusted and may be replaced.....hope it helps

Is the problem your brake pedal is to low There is an adjustment for the brake light switch at the top of the pedal that could affect pedal hight slightly But if down a 1/2 inch or so i would suspect some kind of a problem with the brake system it self how well do the brakes stop the vehicleand have you noticed more of a drop in the pedal over time?

clutch is supposed to be self adjusting. Here are instructions for replacing the adjuster:

REMOVAL & INSTALLATION


See Figure 1

1. Disconnect the battery cable from the negative terminal of the battery.
2. Remove the steering wheel using a steering wheel puller, Tool T67L-3600-A or equivalent.
3. Remove the lower dash panel section to the left of the steering column.
4. Remove the shrouds from the steering column.
5. Disconnect the brake lamp switch and the master cylinder pushrod from the brake pedal.
6. Rotate the clutch quadrant forward and unhook the clutch cable from the quadrant. Allow the quadrant to slowly swing rearward.
7. Remove the bolt holding the brake pedal support bracket lateral brace to the left side of the vehicle.
8. Disconnect all electrical connectors from the steering column.
9. Remove the 4 nuts that hold the steering column to the brake pedal support bracket and lower the steering column to the floor.
10. Remove the 4 booster nuts that hold the brake pedal support bracket to the dash panel.
11. Remove the bolt that holds the brake pedal support bracket to the underside of the instrument panel, and remove the brake pedal support bracket assembly from the vehicle.
12. Remove the clutch pedal shaft nut and the clutch pedal, as outlined above.
13. Slide the self-adjusting mechanism out of the brake pedal support bracket.
14. Examine the self-adjusting mechanism shaft bushings on either side of the brake pedal support bracket, and replace if worn.

To install:

1. Lubricate the self-adjusting mechanism shaft with motor oil and install the mechanism into the brake pedal support bracket.
2. Position the quadrant towards the top of the vehicle. Align the flats on the shaft with the flats in the clutch pedal assembly, and install the retaining nuts. Tighten to 32-50 ft. lbs. (43-67 Nm).
3. Position the brake pedal support bracket assembly beneath the instrument panel, aligning the four holes with the studs in the dash panel. Install the four nuts loosely.
4. Install the bolt through the support bracket and into the instrument panel. Tighten to 13-25 ft. lbs. (18-34 Nm).
5. Tighten the four booster nuts that hold the brake pedal support bracket to the dash panel to 13-25 ft. lbs. (18-34 Nm).
6. Connect the brake lamp switch and the master cylinder pushrod to the brake pedal.
7. Attach the clutch cable to the quadrant.
8. Position the steering column onto the four studs in the support bracket and start the four nuts.
9. Connect the steering column electrical connectors.
10. Install the steering column shrouds.
11. Install the brake pedal support lateral brace.
12. Tighten the steering column attaching nuts to 20-37 ft. lbs. (27-50 Nm).
13. Install the lower dash panel section.
14. Install the steering wheel.
15. Connect the battery cable to the negative terminal on the battery.
16. Check the steering column for proper operation.
17. Depress the clutch pedal several times to adjust the cable.

You cannot adjust the cables on a minivan manually. the tension is automaitcally adjusted by the self adjuster on the pedal release.

The park brake cables on this vehicle have an automatic self adjuster built into the park brake pedal mechanism. When the foot operated park brake pedal is in its released (upward most) position, a clock spring automatically adjusts the park brake cables. The park brake cables are adjusted (tensioned) just enough to remove all the slack from the cables. The automatic adjuster system will not over adjust the cables causing rear brake drag.

Due to the automatic adjust feature of the park brake pedal, adjustment of the parking brake cables on these vehicles relies on proper drum brake.

When the park brake pedal is applied the self adjuster is by-passed and the pedal operates normally to engage the park brakes.

When a service procedure needs to be performed on the park brake pedal or the park brake cables, the automatic self adjuster can be manually locked out by the service technician.

The vehicle has a optional adjustable brake to increase driver comfort. The brake pedal position is changed in phase with the accelerator pedal. The system is adjusted by pressing the dash-mounted switch that powers the driver motor mounted on the accelerator pedal assembly. The two-way motor operates backward (away from the driver) or forward (toward the driver) to adjust the accelerator pedal directly and the brake pedal through the drive cable attached to the brake pedal assembly.
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• Adjustable brake pedal inoperative

• Switch.
• Circuit.
• Motor.
• Cable.
• Obstructions

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PINPOINT TEST D: ADJUSTABLE BRAKE PEDAL INOPERATIVE Test Step Result / Action to Take D1 CHECK MOTOR SOUND

• Allow two minutes for the thermal overload to reset.
• Operate the adjustable pedal control switch.
• Can the adjustable pedal motor be heard to operate?

Yes
GO to D2 .

No
GO to D7 . D2 CHECK MOTOR INSTALLATION

• Check adjustable pedal motor for correct installation.
• Is the motor installation OK?

Yes
GO to D3 .

No
CORRECT the motor installation. TEST the system for normal operation. D3 CHECK ADJUSTABLE ACCELERATOR PEDAL SYSTEM

• Disconnect the brake pedal-to-accelerator pedal cable.
  
• Operate the adjustable pedal control switch.
• Does the adjustable brake pedal operate now?

Yes
INSTALL a new adjustable brake pedal assembly. REFER to Section 206-06 . TEST the system for normal operation.

No
GO to D4 . D4 INSPECT FOR FOREIGN MATERIAL

• Inspect the adjustable accelerator pedal assembly for foreign material causing a binding condition.
• Was any foreign material found?

Yes
REMOVE the foreign material. RETEST for normal operation.

No
GO to D5 . D5 CHECK CABLE

• Detach the adjustable pedal motor cable.
• Inspect the ends of the brake pedal motor cable for wear or damage.
• Are the cable ends OK?

Yes
GO to D6 .

No
INSTALL a new accelerator pedal assembly. REFER to Section 310-02 . TEST the system for normal operation. D6 CHECK CIRCUITS FOR SHORT TO BATTERY

• Key in OFF position. Adjustable Pedal Switch C290
• Disconnect the adjustable pedal switch C290.
• Measure voltage at C290-1 and C290-7.
  
• Is the voltage greater than 0 V at either pin?

Yes
REPAIR the short to battery. TEST the system for normal operation.

No
GO to D7 . D7 CHECK POWER TO SWITCH

• Measure the voltage at C290-2 circuit 490 (RD).
  
• Is the voltage greater than 10 V?

Yes
GO to D8 .

No
REPAIR circuit 490 (RD). TEST the system for normal operation. D8 CHECK GROUND TO SWITCH

• Measure resistance to ground at C290-3 circuit 57 (BK) and C290-6 circuit 57 (BK).
  
• Is the resistance less than 5 ohms at both pins?

Yes
GO to D9 .

No
REPAIR the open circuit. TEST the system for normal operation. D9 TEST SWITCH

• Connect fused jumpers between C290-1 and -2 and between C270-7 and -3.
  
• Does the adjustable pedal motor run in both directions?

Yes
INSTALL a new adjustable pedal switch. TEST the system for normal operation.

No
GO to D10 . D10 CHECK SWITCH-TO-MOTOR CIRCUITS CONTINUITY

• Connect: Adjustable Pedal Switch C290.
• Disconnect: Adjustable Pedal Motor C2001.
• Measure resistance to ground at both pins of the adjustable pedal motor connector, circuits 1494 (RD) and 1495 (WH).
  
• Is the resistance less than 5 ohms at both pins?