JLG E45A_AJ ANSI Service Manual - Manual (Page 110)

SECTION 3 - TROUBLESHOOTING
3-14 – JLG Lift – 3120765
Brake Drags or runs hot.
Low actuation pressure. Place pressure gauge in bleed port & check pres-
sure with system on.
Bearing failure. Replace bearing.
Brake will not release.
Stuck or clogged valve. Place pressure gauge in bleed port - check for
adequate pressure. Replace defective line or
component.
Bad o-rings. Replace o-rings.
Discs frozen. Replace disc stack.
Table 3-4.Chassis Assembly - Troubleshooting
TROUBLE PROBABLE CAUSE REMEDY