Hyundai HL970A Operator's Manual page 275

10) 10)
TROUBLESHOOTING TROUBLESHOOTING
Category
Pump does not work
Pump is working, but does
not supply of lubrication
No grease at all points of
lubrication
No grease at some points
of lubrication
No grease at one point of
lubrication
Reduced pump speed
Excessive pressure
(above 265 kgf/cm ) of the
2
pressure indicator
Signal of the LED
11) 11)
REFILL GREASE REFILL GREASE
Use transparent filling press or external grease filling pump
XKCE-01418
Applications
Defective electronic control unit
Electric cable is broken
Pump is defective
Air in the feed piston filling
Grease level dropped below minimum
level
Defective pump element
Pump does not work.
Inoperative time is too long or period of
lubrication is too short.
System is blocked.
Some pipes are burst or leakage
Leakage at screwed unions
The lubrication pipe is burst or leakage
Leakage at screwed unions
High pressure in the system
Low ambient temperature
Excessive pressure in the system
Progressive distributor is blocked
System is blocked
Defective valve spring
The LED of control unit is light up conti-
nuously
XKCE-00091
8-8
Service
Replace the control unit
Renew the electric cable
Replace the pump
Bleed the pump
Refill the grease tank
Replace the pump element
Refer to "Pump does not work".
Reduce the inoperative time or increase
the period of lubrication.
Refer to "Excessive pressure (above 265
kgf/cm ) of the pressure indicator".
2
Renew the pipes
Retighten or renew the screwed union
Renew the pipe
Retighten or renew the screwed union
Check the system / bearing points
Not a defective (1 or 2 intermediate lubric-
ation cycles may be useful)
Check the system
Replace the distributor
Repair clogged / seized greasing points
Replace the pressure relief valve
Check electrical system and control unit
32QB-91610