Dawson HPH 1200, User Manual

Page: 18 / 54

3.7 PREVENTATIVE MAINTENANCE GUIDELINES FOR HPH 1200 & 2400 HYDRAULIC HAMMERS, AND DIESEL ENGINED POWER PACKS
DAILY OR REFUELLING EVERY 125 HOURS EVERY 250 HOURS EVERY 500 HOURS EVERY 1000 HOURS EVERY 2000 HOURS
CHECK
:
•
OIL LEVEL
•
COOLANT LEVEL
•
FAN
-
INSPECTION
•
DRIVE BELT
-
INSPECT
•
FUEL WATER TRAP
-
DRAIN
CHANGE
:
•
LUBE OIL
•
LUBE FILTER
CHECK
:
•
AIR CLEANER
•
INTAKE SYSTEM
•
CHARGE AIR COOLER
CHANGE
:
•
FUEL FILTER
CHECK
:
•
ANTI FREEZE
ADJUST
:
•
VALVE LASH CLEARANCE
CHECK
:
•
FAN HUB
•
BELT TENSIONER BEARING
•
BELT TENSION
CHANGE
:
•
ANTI FREEZE
CHECK
:
•
DAMPER
CHECK
:
•
HYDRAULIC OIL LEVEL
•
AIR INLET
/
OUTLETS FREE
FROM OBSTRUCTION
•
CONDITION OF LIFTING POINTS
&
SLINGS
/
SHACKLES
•
TEST DIAGNOSTIC LEDS
•
INSPECT GAUGES
•
CONDITION OF QUICK RELEASE
COUPLINGS
CHECK
:
•
FOR HYDRAULIC OIL LEAKS
&
RECTIFY
•
CONDITION OF HOSES
•
TIGHTNESS OF FASTENERS
•
CONDITION OF PAINTWORK
•
BATTERY WATER LEVEL
•
FUNCTION OF PENDANT
&
CONDITION OF CABLE
CHECK
:
•
BATTERY CHARGING
CHANGE
:
•
HYDRAULIC OIL
/
FUEL
FILLER FILTERS
CHECK
:
•
PRESSURE OUTPUT OF PUMP
•
FLOW OUTPUT OF PUMP
CHANGE
:
•
PRESSURE
/
RETURN
HYDRAULIC FILTERS
CHECK
:
•
CONDITION OF WIRING
•
DRIVE COUPLING FOR WEAR
•
CONDITION OF EXHAUST
CHANGE
:
•
HYDRAULIC OIL AND CLEAN
OUT SYSTEM
CHECK
•
ALL EXTERNAL FASTENERS
FOR TIGHTNESS
•
DOLLY CONDITION
•
SUSPENSION BLOCK
&
SUSPENSION RING CONDITION
•
LIFTING POINT CONDITION
•
SERVICEABILITY OF
SLINGS
/
SHACKLES
MUST
:
•
GREASE HAMMER
FREQUENTLY
CHECK
:
•
TIGHTNESS OF ALL HOSES
,
FITTINGS AND FASTENERS
INSIDE HAMMER
•
CONDITION OF BOTH
SENSORS
•
WEAR LEVEL ON LEG INSERTS
CHECK
:
•
ACCUMULATOR NITROGEN
PRECHARGE PRESSURES
•
HAMMER FILTER
•
FUNCTION OF OVERTRAVEL
VALVE
•
FUNCTION
/
CONDITION OF
PROBE ASSEMBLY AND
BOTTOM TRIP DEVICE
CHANGE
:
•
RESILIENT WASHERS
BETWEEN DROP WEIGHT
&
HYDRAULIC RAM ON HPH
2400
ONLY
CHECK
:
•
CONDITION OF HEIGHT
ADJUSTING RAM
•
TIGHTNESS OF
ACCUMULATORS
•
CONDITION OF MAIN FEED
HOSES TO HAMMER
CHANGE
:
•
RESILIENT WASHERS BETWEEN
DROP WEIGHT AND
HYDRAULIC RAM
CHECK
:
•
PLAY IN MAIN RAM
ANCHORAGE ASSEMBLY
•
CONDITION OF ANVIL
•
PLAY BETWEEN DROP WEIGHT
AND CASING BORE
-
TEST RUN ON PILE
15
MINUTES
BEFORE AND AFTER CHECKING
TEST RUN ON PILE
15
MINUTES
BEFORE AND AFTER CHECKING
TEST RUN ON PILE
30
INUTES
BEFORE AND AFTER CHECKING
TEST RUN ON PILE
30
MINUTES
BEFORE AND AFTER CHECKING
TEST RUN ON PILE
30
MINUTES
BEFORE AND AFTER CHECKING
(FOR FULL DETAILS SEE SECTIONS 4 AND 5 IN THE HAMMER MANUAL AND THE CUMMINS SERVICE MANUAL)