Mohawk ML-220, Manual

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MOHAWK MODEL ML-220
13
MAINTENANCE PROCEDURES
-- TRAINED LIFT SERVICE PERSONNEL ONLY ±
DAILY
x
PERFORM THE PRE-OPERATION CHECK LIST.
x
REPORT ANY AND ALL EQUIPMENT MALFUNCTIONS
IMMEDIATELY.
x
CLEAN ALL MOVING PARTS. (IT IS NOT RECOMMENDED TO
GREASE THE INSIDE OF THE CHANNEL ON THE POST,
SWING
ARMS OR SWING ARM RESTRAINTS.) IF
OXIDIZATION IS OCCURRING USE A LIGHT LUBRICANT. (WD
- 40 OR EQUIVALENT)
x
KEEP AREA AROUND THIS EQUIPMENT FREE OF DIRT,
SAND, WATER, ETC.
WEEKLY
x
PERFORM THE DAILY OPERATION CHECK LIST.
x
WIPE CLEAN, THE CYLINDERS' WIPER SEALS AND THE BASE
OF EACH POST TO REMOVE ANY WEEPING OIL AND DUST.
x
VERIFY FLUID LEVEL. WITH THE UNIT FULLY LOWERED,
THE FLUID LEVEL WILL BE 1/2 INCH BELOW THE BREATHER
CAP PORT. USE DEXRON III AS REPLACEMENT FLUID.
x
LUBRICATE THE ARM RESTRAINT ASSEMBLIES AS NEEDED
TO INSURE FREE, AND SMOOTH OPERATION.
(
DO NOT USE GREASE)
x
CYCLE UNIT TO FULL HEIGHT, AND BLEED
APPROXIMATELY 30 SECONDS.
MONTHLY
x
INSPECT LIFTING COMPONENTS FOR DEFORMATION, WEAR
OR CORROSION.
x
INSPECT ALL HYDRAULIC COMPONENTS FOR LEAKS,
DEFORMATION, WEAR OR CORROSION.
x
TIGHTEN ALL FASTENERS AND HYDRAULIC FITTINGS AS
REQUIRED.
1. ALL O - RING BOSS FITTINGS JAM NUTS ARE TO BE
TIGHTENED TO 15-FOOT POUNDS TORQUE.
2. ALL PIPE FITTINGS, IF LEAKING IS TO BE REMOVED,
RE-SEALED, AND RE - INSTALLED. (SELECT - UNITE
THREAD SEALANT OR EQUIVALENT ON
FITTING
THREADS)
x
INSPECT ANCHOR CONDITIONS FOR ANY POSSIBLE
CORROSION AND INSPECT THE FLOOR FOR ANY SIGNS OF
FATIGUE OR FRACTURES.
SEMI- ANNUAL
x
QUALIFY / RE-QUALIFY ALL PERSONNEL IN THE SAFE
OPERATION OF THIS UNIT.
x
VERIFY ALL FASTENERS TO PROPER TORQUE:
SWING ARM NUTS TIGHTEN TO 1000 FT-LB,
THEN BACK OFF UNTIL ARMS MOVE FREELY.
CARRIAGE STOP FASTENERS TO 150 FT-LB
CARRIAGE SIDE ROLLER NUTS TO 250 FT-LB
LIFTING ROD NUTS TO 650 FT-LB
CYLINDER TOP BOLT TO 650 FT-LB
ANCHORS (SEE ANCHOR SPECIFICATION SECTION)
x
LUBRICATE LOCK BODY MAIN PIVOT PINS. REMOVE WITH
SNAP RING PLIERS WHEN FULLY LOWERED AND CLEAN
LOCK PIVOT PIN AND LOCK BODY HOLE. SPRAY PIN WITH A
LIGHT LUBRICANT (WD-40 OR EQUIVALENT), THEN RE-
ASSEMBLE, ENSURING SMOOTH MOTION.
x
THE CHANNEL SECTIONS WHERE THE CARRIAGE BEARINGS
RIDE AGAINST SHOULD BE CLEANED AND LUBRICATED
USING SLIP PLATE OR A LIGHT LUBRICANT (WD-40).
x
THE MAIN CARRIAGE BEARINGS ARE FACTORY
LUBRICATED AND SEALED. THEY DO NOT REQUIRE ANY
ADDITIONAL PERIODIC LUBRICATION. HOWEVER, IF
ADDITIONAL LUBRICATION IS DESIRED ON THESE UNDER
7+( &86720(5¶6 2:1 ,163(&7,21 $1' 0$,17(1$1&(
PROGRAM, IT IS RECOMMENDED TO USE CAM2 ±
MULTIPURPOSE #2 GREASE (PART NO. 86035) OR
EQUIVALENT. USE APPROXIMATELY 2 OZ. PER BEARING.
ANNUALLY
x
CHECK YOUR HYDRAULIC FLUID VOLUME ANNUALLY.
EVERY TEN YEARS REPLACE AND RE-BLEED THE
HYDRAULIC FLUID. ALWAYS USE A CLEAN FUNNEL AND
FILTER. USE DEXRON III HYDRAULIC FLUID.
x
INSPECT ALL BEARINGS FOR UNUSUAL OR EXCESSIVE
WEAR. (REPLACE IF NEEDED)
x
REMOVE THE SWING ARM RESTRAINTS. THOROUGHLY
CLEAN. USE A LIGHT LUBRICANT (WD-40 OR EQUIVALENT)
REINSTALL.
DO NOT USE GREASE.
x
REMOVE THE SWING ARMS. THOROUGHLY CLEAN. USE A
LIGHT LUBRICANT (WD-40 OR EQUIVALENT) REINSTALL.
DO NOT USE GREASE.
x
PERFORM THE DAILY, WEEKLY, AND MONTHLY
MAINTENANCE PROCEDURES.
PART REPLACEMENT NOTES
x
x
REPLACE ALL WORN OR BROKEN PARTS WITH GENUINE
LIFT MANUFACTURER SUPPLIED PARTS (FROM MOHAWK
RESOURCES LTD. ONLY)
x
ALL REPLACEMENTS OF PARTS ARE TO BE PERFORMED BY
TRAINED LIFT SERVICE PERSONNEL ONLY.
x
UPON PART REPLACEMENT, LIFT MUST PASS A FULL LIFT
INSPECTION AS DEEMED SUITABLE BY TRAINED LIFT
SERVICE PERSONNEL.