JLG 3969electric ANSI Service Manual - Manual (Page 27)

SECTION 2 - PROCEDURES
3120768 – JLG Sizzor –
2-15
5. Switch on power supply and ensure brake fully
releases.
6. The brake can be adjusted for friction plate wear by
removing spacers and machining them to maintain
the correct air gap. Length of all three spacers
should be within 0.001 in. (0.025 mm)
2.18 FREE WHEELING PROCEDURE
Use the following procedures ONLY for emergency move-
ment to a suitable maintenance area.
1. Chock all wheels securely.
2. Engage the mechanical release on both brakes by
loosening, completely reversing (towards drive
motor) and tightening the three nuts on each brake.
3. Connect suitable equipment, remove chocks, and
move machine.
4. After moving machine, position on a firm, level sur-
face.
5. Chock wheels securely.
6. Disengage the mechanical release on both drive
brakes by loosening, completely reversing (towards
torque hub) and tightening the three nuts on each
brake.
7. Remove chocks from wheels as desired.
Figure 2-15. Drive Brake Assembly