13 boom limit switches, Boom limit switches -29 – JLG 45e Service Manual User Manual

Page 55

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SECTION -

3120861

– JLG Lift –

-29

tor to trip. If the indicator does not trip in all three
tests, the flange nuts have been tightened too far.

2.13 BOOM LIMIT SWITCHES.

There are no adjustments to be made to the two Boom
Limit Switches which bolt in place on the upright.

2.14 POWER TRACK REMOVAL PROCEDURE

(35/N35/40/N40/45 ELECTRIC).

1.

Position the Upper Boom to horizontal.

2.

Align the (2) holes at left side rear of the Upper
Boom.

3.

Remove the cover on left side of Upper Boom.
(exposing hydraulic and electric lines)

4.

Disconnect and remove 3 pronged plug and 35 pin
plug from electric lines.

5.

Disconnect hydraulic lines. (2)

6.

Remove Power Track bolts (2) at right side center of
Upper Boom. (shown in Figure 2-9)

7.

Remove holding block at rear of telescoping cylin-
der (4) bolts.

8.

Pull the Power Track towards the rear from the right
side of the track.

9.

Disconnect the Power Track from left rear of Upper
Boom.(2) bolts.

10.

Remove the hydraulic and electrical lines from the
Power Track.

11.

Install in reverse order of removal.

2.15 PRESSURE SETTING PROCEDURES. (IN

SEQUENCE) (SEE FIGURE 2-29)

Model 30 electric.

Main Relief at Pump.

1.

Install pressure gauge at port “G” on 4640725 valve.

2.

Activate and bottom out either Upper or Lower Lift
Up. Adjust Main Relief to 179.27 bar.

Lift Down Relief.

1.

With pressure gauge at “G” port on 4640725 valve,
activate and bottom out Upper Lift Down.

2.

Adjust Upper Lift Relief to 62 bar.

3.

Activate and bottom out Lower Lift Down.

4.

Adjust Lower Lift Relief to 49.99 bar.

Swing Relief.

1.

With pressure gauge at “G” port on 4640725 valve,
activate and bottom out Swing function in either
direction.

2.

Adjust Swing Relief to 68.95 bar.

Steer Relief.

1.

With pressure gauge at “G” port on 4640726 valve,
activate and bottom out Steer Left or Right.

2.

Adjust Steer Relief to 75.84 bar.

3.

Shut down hydraulic system and remove pressure
gauge.

Model 35/n35 electric.

Main Relief at Pump.

1.

Install pressure gauge at port “G” on 4640843 valve.

2.

Activate and bottom out either Upper or Lower Lift
Up. Adjust Main Relief to 179.27 bar.

Lift Down Relief.

1.

With pressure gauge at “G” port on 4640843 valve,
activate and bottom out Upper Lift Down.

2.

Adjust Upper Lift Relief to 41.37 bar.

Lower Lift Down Relief.

1.

With pressure gauge at “G” port on 4640843 valve,
activate and bottom out Mid/Lower Lift Down.

2.

Adjust Lower Lift Relief to 41.37 bar.

Figure 2-28. Tilt Switch.

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