JLG 45e ANSI Service Manual - Manual (Page 56)

SECTION 2 - PROCEDURES
2-32 – JLG Lift – 3120743
2.12 TILT INDICATOR SWITCH LEVELING
PROCEDURE. (IF EQUIPPED.)
PERFORM TILT ALARM SWITCH LEVELING PROCEDURE A MINI-
MUM OF EVERY SIX MONTHS TO ENSURE PROPER OPERATION
AND ADJUSTMENT OF SWITCH.
Manual Adjustment.
11. Park the machine on a flat level surface. Be sure it is
as level as possible, with tires filled to rated pres-
sure.
NOTE: Ensure switch mounting is level and securely
attached.
12. Tighten the three flange nuts with a socket wrench.
Each nut should be tightened approximately one-
quarter of its spring’s travel.
13. Using bubble level on top of indicator, Tighten or
loosen the three flange nuts until indicator is level.
14. Individually push down on one corner at a time.
There should be enough travel to cause the indica-
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)
NOTE: 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 2600 psi (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 900 psi (62 bar).
3. Activate and bottom out Lower Lift Down.
4. Adjust Lower Lift Relief to 725 psi (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 1000 psi (68.95 bar).
Figure 2-28. Tilt Switch.