Greer Company
Greer Company
Greer Company
Greer Company
Crane Systems
1918 EAST GLENWOOD PLACE, SANTA ANA CA 92705
Tel:(714) 259-9702 Fax:(714) 259-7626
MicroGuard
424 Operation/Troubleshooting Manual Horizontal Display Hydraulic Cranes
Page
26
of
52
W424103 REV A 02/13/01
SYSTEM CHECKS
SYSTEM CHECKS
SYSTEM CHECKS
SYSTEM CHECKS
♦
Check that the displayed boom angle agrees with the measured angle.
♦
Check that the displayed radius agrees with the measured operating radius.
♦
Check that the displayed boom length agrees with the actual boom length.
♦
If a known test weight is available, check that the displayed weight agrees with the test load.
The
displayed load includes the hook block and any lifting attachments such as slings, pins and shackles.
♦
If the capacity chart is rated for specific areas e.g., side, front or rear, the system should be checked
by swinging the boom into the permitted areas and checking that the Rated Capacity reading agrees
with the crane Capacity Chart.
ROUTINE MAINTENANCE
ROUTINE MAINTENANCE
ROUTINE MAINTENANCE
ROUTINE MAINTENANCE
The MicroGuard
424 System has built-in self-test facilities and checks itself each time the system is
switched on. Only a minimum level of preventive maintenance is required. This is restricted to visual
inspections of cables and sensors for obvious signs of wear and tear and inspection of mechanical parts,
such as extension reels and anti two-block switches.