Mohawk A-7, Manual

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MOHAWK MODEL A-7
12
PRE - OPERATION CHECK LIST
TRAINED OPERATOR

THE OPERATOR MUST BE FULLY TRAINED AND QUALIFIED
TO SAFELY AND EFFECTIVELY OPERATE THIS EQUIPMENT
OF THIS SPECIFIC MAKE AND MODEL.
ABSENCE OF OBSTRUCTIONS

THE TOTAL WORK AREA MUST BE FREE OF ANY AND ALL
OBSTRUCTIONS AND BE GENERALLY CLEAN. (FREE OF OIL
AND DEBRIS)
VISUAL INSPECTION

THOROUGHLY INSPECT THE UNIT WITH A TRAINED EYE,
NOTING ANY PROBLEM AREAS. INSPECT THE FLOOR AND
THE ANCHORING FASTENERS AS WELL. REPORT ANY
QUESTIONABLE ITEMS.

THOROUGHLY INSPECT ALL LIFTING PADS AND HEIGHT
ADAPTERS
FOR ANY WEAR, RUST,DEBRIS, OR
DEFORMITIES. IF NEEDED, THOROUGHLY CLEAN AND OIL
WITH LIGHT OIL OR LUBRICANT, SUCH AS WD-40. ENSURE
NO OIL OR GREASE IS PRESENT ON TOP SURFACES OF PADS,
WHERE PADS CONTACT VEHICLE PICK POINTS.
NO LOAD PERFORMANCE CHECK

ALL MECHANICAL SAFETIES OPERATE PROPERLY AND
CONSISTENTLY.

NO EXTERNAL FLUID LEAKS.

NO BLEED DOWN.

EFFORTLESS AND SIMULTANEOUS MOVEMENT.

LEVEL LIFTING.

CONTROLS FUNCTION PROPERLY.

ALL SAFETY MECHANISMS FULLY FUNCTIONAL.
PREVIOUS DAY' S OPERATION REPORT

VERIFY WITH SUPERVISOR THAT THERE WAS NO
PROBLEMS EXPERIENCED THE PREVIOUS DAY. IF THERE
WERE ANY PROBLEMS, VERIFY THAT ALL NECESSARY
REPAIRS HAVE BEEN COMPLETED.
LIFTING PROCEDURES
LIFT PREPARATION AND VEHICLE POSITIONING

PERFORM PRE-OPERATION CHECK LIST ITEM BY ITEM.

POSITION THE SWING ARM TO THE OUTSIDE OF THE UNIT.

POSITION THE VEHICLE CENTERED BETWEEN THE POSTS.
NOTE:
ALIGN THE VEHICLE’S CENTER OF GRAVITY WITH THE
OUTWARD CENTERLINE OF THE POSTS (DIRECTLY FROM
THE GACE OF THE CARRIAGES). PROPER POSITIONING CAN
BE VERIFIED BY VIEWING THE CAM FOLLOWER BEARINGS
ON THE CARRIAGE. THESE BEARINGS ARE LOCATED AT
EACH CORNER OF THE CARRIAGE. CENTERING OF VEHICLE
IS ACHIEVED WHEN ALL 4 CAM FOLLOWER BEARINGS ARE
FREE TO SPIN.

PLACE THE LIFTING PADS PER MFG’S RECOMMENDED LIFT
POINTS FOR THE VEHICLE. REFER TO ALI/LP-GUIDE,
ALI/SMO1-2 “LIFTING IF RIGHT” GUIDE, AND REFER TO THE
RECOMMENDED LOCATION AND FORMAT OF THE VEHICLE
LIFT POINT LABEL PER ANSI/SAE J2184-OCT92.

FRAME RAILS/PICK POINTS ARE TO BE CENTERED ON
LIFTING PADS AND REST FLAT ON LIFTING PAD SURFACES
(SEE FIGURE 15)

LIFT PAD IS TO BE FULLY INSERTED INTO SLIDER HOLE OR
HEIGHT ADAPTER.

NO MORE THAN (2) TWO HEIGHT ADAPTERS ARE TO BE
USED AT ANY TIME FOR ANY SINGLE LIFTING PAD.
CAUTION:
IF PROPER AND SAFE LIFTING POINTS ON THE FRAME OF
THE VEHICLE CAN NOT BE REACHED BY THE LIFTING PADS,
DO NOT RAISE THE VEHICLE!
TO RAISE

ENGAGE THE UP-BUTTON ON THE POWER UNIT.

RAISE VEHICLE TO THE DESIRED WORKING HEIGHT.

LOWER THE UNIT ONTO THE MECHANICAL SAFETIES.
TO LOWER

INSPECT THE LIFTING AREA TO INSURE THAT ALL
PERSONNEL AND DEBRIS HAVE BEEN CLEARED FROM THE
LIFTING AREA.

ENGAGE THE UP-BUTTON ON THE POWER UNIT.

RAISE UNIT APPROXIMATELY TWO INCHES.

DISENGAGE THE MECHANICAL SAFETIES.

LOWER UNIT TO THE DESIRED WORKING HEIGHT.

ALWAYS ENGAGE THE UP-BUTTON ON THE POWER UNIT
AND RAISE UNIT UNTIL BOTH MECHANICAL SAFETIES RE-
ENGAGE.

LOWER THE UNIT ONTO THE MECHANICAL SAFETIES.

IF WORK IS COMPLETE, CONTINUE LOWERING THE
UNIT UNTIL BOTH CARRIAGES ARE FULLY LOWERED.
NOTE: IF FOR ANY REASON, THE LIFT BECOMES INOPERATIVE
IN THE RAISED POSITION WITH A VEHICLE ON IT, CONTACT
YOUR LOCAL MOHAWK REPRESENTATIVE OR THE MOHAWK
FACTORY.