Service Steering & Brakes

Removing and Installing Caster Wheels

c CAUTION: Avoid injury! The machine can fall or slip from an unsafe lifting device or supports. • Use a safe lifting device rated for the load to be lifted. • Lower machine onto jack stands or other stable supports and block wheels before servicing.

Removing

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Lift front of machine with a safe lifting device. (See Lifting Machine in the SERVICE MISCELLANEOUS Section.)

MX27398

3. Remove hex nut (A) and wheel bolt (B).

4. Remove wheel from assembly yoke (C).

Installing

1. Install replacement wheel.

2. Install wheel bolt (B) and hex nut (A).

3. Tighten nut and torque to 37 Nm (27 Ft. lbs)

4. Lower machine.

Checking and Aligning Motion Control Levers

Check Alignment

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Move both motion control levers forward.

3. Check levers for equal alignment. If position of control levers are unequal, an adjustment is necessary.

Alignment Procedure

MX24920

1. Loosen locknuts (A).

2. Slide both left and right motion control levers forward or rearward to desired position on control arm until levers are aligned.

3. Tighten locknuts.

NOTE: The control lever height can also be adjusted using this procedure. There are two height settings on the control arms.

Checking and Adjusting Motion Control Levers Gap

Checking Alignment

1. Park machine safely. (See Parking Safely in the SAFETY section.)

MX24917

2. Move motion control levers (A) inward to neutral position.

3. If the ends of the levers strike against each other while in the neutral position an adjustment is needed.

Adjustment Procedure

MX24918

1. Loosen jam nuts (B).

2. Tighten left and right adjustment bolts (C) slightly to increase gap between handles. The recommended gap between handles is 6-19 mm (1/4-3/4 in.)

3. Tighten jam nuts to hold adjustment bolts in place.

Adjusting Park Brake

Park Brake Adjustment

Perform adjustment if neutral interlock system adequately restrains controls in neutral, but brake will not hold on slope.

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Lock park brake pedal.

MX42623

3. Measure the gap (A) between the two washers (B).

4. Tighten or loosen the brake equalizer adjustment nut (C) so that the gap (A) between the two washers measures 27 - 29 mm (1-1/16 - 1-9/64 in.).

Neutral Interlock Adjustment

Perform adjustment only if neutral interlock system does not adequately lock control levers in neutral, or if brake/steering system has been disassembled.

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Unlock park brake pedal.

3. Back off brake equalizer adjustment nut (C) to end of threaded rod (D), but do not remove. Check spring to make sure it is not compressed when park brake is engaged.

4. Lock park brake pedal.

5. Move control levers to the neutral lock position.

MX24910

MX24911

Picture Note: Control lever removed for clarity.

6. Loosen jam nuts (E).

7. Adjust (shorten) turnbuckle (F) until cam (G) is fully engaged under control pivot wedge (H).

MX24912

• When adjusted properly, cam (G) and control surface (I) will be parallel.

8. Verify that the control lever will freely move in and out of the slot in the frame before tightening jam nuts.

9. Adjust the equalizer adjustment nut (C). (See Park Brake Adjustment)

10. Move control levers to the neutral lock position.

MX24913

11. Adjust control set screw (J) until you notice the control lever begin to move forward in the control slot.

12. Move control lever in and out to verify that it is not binding with the frame slot. Lock and unlock park brake.

NOTE: Do not pull pedal back manually.

13. If brake pedal binds or does not fully release, loosen the set screw by 1/6 of a turn. Check pedal again for binding. If pedal still binds, loosen the right side set screw by 1/6 of a turn. Repeat as necessary.