TRACTION TENSION

ADJUSTMENT

(920020)

(Figures 45 and 46)

Check the track tension by applying pressure on the track midway between the upper and rear track rollers. Deflection should be approximately 3/8" (9.5 mm) (Figure 45). If deflection is excessive, tighten the track tension.

3/8" (9.5 mm)

1 5

2

 

 

3

1. Drive Wheel

4

2.Wheel Clip

3.Flange Nut

4.Bogie Wheel

5.Drive Axle

Figure 45

If unit pulls to the left or right when a straight path is desired, adjust the track tension. If the unit is pulling to the left, tighten the left track adjuster. If the unit is pulling to the right, tighten the right track adjuster.

To adjust (Figure 46):

1.Tighten the adjuster nut to tighten the track tension. Loosen the adjuster nut to reduce track tension.

2.Check that unit tracks straight with no pulling to either side.

HEIGHT ADJUSTER CABLE ADJUSTMENT

(920020)

(Figure 47)

1.Make sure that height adjustment lock finger is fully engaged (Figure 47).

2.Loosen jam nuts on cable mount bracket.

3.Adjust the jam nuts to remove all cable slack and bring the overtravel arm into slight contact with the right end of the slot in the height adjuster lock finger.

4.Tighten the jam nuts.

Pin on overtravel arm

2

makes slight contact

with end of slot.

3

 

1

4Before adjusting ensure that height adjuster lock finger is fully engaged.

1.Height Adjuster Lock Finger

2.Overtravel Arm

3.Height Adjuster Cable

4.Jam Nuts

Figure 47

OS7229

 

Track

Adjusters

Figure 46

OS7380

EN - 37