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Presto P4 manual

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Table of contents for the manual

  • Page 1

    P4 Level Loader Model Number ___________________ Serial # _________________________ Date Placed in Service _____________ IMPOR T ANT : READ CAREFULL Y BEFORE INST ALLING OR OPERA TING LIFT Part orders are subject to a $50 miminum charge May 2006[...]

  • Page 2

    2 PRESTO P4 LEVEL LOADER OWNER’S MANUAL INTRODUCTION The P4 Level Loader is designed to allow faster , safer , and easier pallet loading and unloading. Pallets may be loaded or unloaded in a single step, using a fork truck, or hand pallet truck. Using a pushbutton or footswitch control, the operator can position boxes or cont ainers at a convenie[...]

  • Page 3

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 3 TABLE OF CONTENTS I NTRODUCTION ............................................................................................................... 2 SAFETY ........................................................................................................................ 4 INST ALLA TION INSTRUCTIONS ....[...]

  • Page 4

    4 PRESTO P4 LEVEL LOADER OWNER’S MANUAL INST ALLA TION INSTRUCTIONS Preparation 1. Before you start to install the unit, check for local codes and ordinances which may apply . It is your responsibility to obtain any necessary permits. 2. Read all of these installation instructions carefully . Be sure to read and understand all of the warnings. 3.[...]

  • Page 5

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 5 3. During shipping, the platform of the unit is raised 5-1/2", and this platform is supported on two pins. This allows a space under the platform. When you want to move the unit, put a p allet jack under the platform and lift the unit. This is the best way of moving the unit. CAUTION! Always raise the [...]

  • Page 6

    6 PRESTO P4 LEVEL LOADER OWNER’S MANUAL 1. The unit is supplied with a power cord which is 10' long. Y ou must provide a two-prong outlet within this distance from the unit. The circuit should be provided with a 20 amp circuit breaker or fuse. W ARNING! T o avoid fire danger , be sure to provide a circuit breaker or fuse. 2. The standard uni[...]

  • Page 7

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 7 on the relief valve, you may overwork the unit. This can cause the unit to fail suddenly , and you may be hurt. 4. Clean up any spilled hydraulic fluid. S pilled hydraulic oil is slippery , and may present a fire hazard. If you clean up any spilled fluid, you will be able to tell right away if the unit begi[...]

  • Page 8

    8 PRESTO P4 LEVEL LOADER OWNER’S MANUAL onto the operator ’ s toes. If this safety system is not working correctly , do not operate the unit. Call a maintenance worker right away . Loading the Unit 1. Before operating the unit, please read and understand all of this section. 2. Be sure that the load weighs no more than the maximum rated for the[...]

  • Page 9

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 9 W ARNING! As the platform moves up and down, “pinch points” are created as shown in Fig. 2. ST A Y A W A Y FROM THESE PINCH POINTS! Part of your body or clothing may become caught, and you may be hurt. Do not put your hands or feet under the platform. Do not stand or sit on the platform. 2. Before lifti[...]

  • Page 10

    10 PRESTO P4 LEVEL LOADER OWNER’S MANUAL 2. Before lowering the platform, be sure all workers are clear of the unit. W ARNING! As the platform moves up and down, “pinch points” are created as shown in Fig. 2. ST A Y A W A Y FROM THESE PINCH POINTS! Part of your body or clothing may become caught, and you may be hurt. 3. There is a photoelectr[...]

  • Page 11

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 11 operator . If the labels are worn or missing, or have been p ainted over , REPLACE THEM before releasing the lift for operation. Fig. 1 shows the safety markings on this unit. Routine Periodic Maintenance Every month: • Remove the plate on the rear of the unit and check the mechanical parts. Inspect the [...]

  • Page 12

    12 PRESTO P4 LEVEL LOADER OWNER’S MANUAL T roubleshooting Check List All servicing should be done by qualified personnel. Qualified personnel should be able to read and understand wiring and hydraulic diagrams. They should be able to troubleshoot live electrical circuits safely and in accordance with accepted practice. FOR SAFETY’S SAKE, if in [...]

  • Page 13

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 13 Relief valv e cap Retainer ring Relief valv e adjusting screw Check v alve cap O-ring Check v alve spring Check v alve ball Outer spring Inner spring R elief valv e poppet Coupling – pump to motor Gasket Down v alve plunger Down v alve strainer Down v alve solenoid Nut Fig. 8 Pump[...]

  • Page 14

    14 PRESTO P4 LEVEL LOADER OWNER’S MANUAL valve has been included for the protection of all of the workers who use the unit. 3. If the motor is not running, check the electrical plug, the circuit breaker or fuse, and the wiring to the motor . 4. The hydraulic oil level may be low . In order to check the level, lower the unit completely and unplug [...]

  • Page 15

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 15 eye. The reflector may need to be cleaned or replaced. 2. The down valve may be de-energized. While the platform is lowering, the down valve should be energized and fully open. Check the solenoid in the valve with a voltmeter . The valve must be clean and free to operate. Remove the solenoid, then the down[...]

  • Page 16

    16 PRESTO P4 LEVEL LOADER OWNER’S MANUAL Ordering Replacement Parts Presto Lifts has carefully chosen the components in your unit to be the best available for the purpose. Replacement parts should be identical to the original equipment. Presto Lifts will not be responsible for equipment failures resulting from the use of incorrect replacement par[...]

  • Page 17

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 17 RESTOCKING POLICY Presto Lift, Inc.’ s goal is for you to be satisfied with your order . Merchandise may be returned, but returns will be subject to a restocking fee to cover the costs Presto Lift, Inc. incurs which include but are not limited to handling, storage of the units, etc. Presto Lift, Inc. wil[...]

  • Page 18

    18 PRESTO P4 LEVEL LOADER OWNER’S MANUAL RETURN MA TERIALS AUTHORIZA TION (RMA) PROCEDURES Although Presto Lift, Inc. is not legally obligated to issue a credit for any merchandise, the RETURN MA TERIALS AUTHORIZA TION (RMA) PROCEDURE is provided as a cour- tesy to our customers in the event they do not receive what they wanted. If a customer wis[...]

  • Page 19

    PRESTO P4 LEVEL LOADER OWNER’S MANUAL 19[...]

  • Page 20

    20 PRESTO P4 LEVEL LOADER OWNER’S MANUAL Presto Lifts Limited W arranty Policy Presto Lifts warrants all of its products against defects in the welded structural frame and, if applicable, scissor legs from faulty material and workmanship for a period of five (5) years from the date of invoice. A lifetime limited warranty is provided for the Airst[...]