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Service

Manual

EPT20-15EHJ

S e m i - e l e c t r i c P a l l e t Tr u c k

MANUAL NO. SM1121 01.16

Содержание EPT20-15EHJ

Страница 1: ...Service Manual EPT20 15EHJ Semi electric Pallet Truck MANUAL NO SM1121 01 16...

Страница 2: ...4 5 Other Issues 15 5 ELECTRICAL 17 5 1 Disassembly and Assembly 17 5 2 Electrical Schematic Diagram 19 5 3 Power Cables 20 5 4 Controller Troubleshooting 21 5 4 1 Fault Detection 21 5 4 2 Hand Held P...

Страница 3: ......

Страница 4: ...ex 3 as shown in Figure 01102 Then the wheel bracket assembly index 5 can be replace If the load wheel index 9 is only replaced the riser pivot shaft index 7 will have to be removed after extracting r...

Страница 5: ...the motor cable box index 4 and remove the two cables index 5 Unscrew the three screws index 6 and take down the brake index 7 Unfasten the eight screws index 8 and remove the gear box cover index 9...

Страница 6: ...out the gear ring index 16 and the bearings index 17 Then the drive wheel can be changed Change the brushes If the brushes index 7 must be repalced the motor will have to be dismantled Unfasten the th...

Страница 7: ...lowly 2 Insert handle pin into corresponding holes and drive in one cotter pin on one side only see arrow 2 Note Insert handle pin without the handle and verify that the center hole is facing you see...

Страница 8: ...down lever to its lowest position to make the process easier Once the chain is in the proper position check to see that it moves freely and that it is not obstructed 6 Use both hands push on the valv...

Страница 9: ...pumped with full strokes to prime and eliminate air in the system The up down lever should be checked at the handle s lowest position for this puts the most tension on the chain Once the pallet truck...

Страница 10: ...e 01402 Refer to Figure 01403 Change the lift capacity by adjusting the position of the screw index 2 which is in the relief valve index 1 Screwing Inward bigger Screwing outward smaller The seal kit...

Страница 11: ...g state Operate the vehicle slowly when lifting hea vy load do not rapidly flip the gear lever otherwise may damage the vehicle or the loads 4 After the handle is installed properly follow the steps d...

Страница 12: ...ment the angle is recommended to be less than 15 at one time 1 The vehicle cannot lift Cause 1 Due to transportation long time storage or inversion it is likely to be air entering into the hydraulic s...

Страница 13: ...insufficient commissioning the fault can be fixed through re commissioning If the valve stem can only be pushed forward but cannot be pulled backward and cannot automatically reset the stem seems to b...

Страница 14: ...fix 2 An appropriate amount of hydraulic oil needs to be refilled depending on the loss of hydraulic oil Warning DO NOT attempt this repair operation without proper training 4 The vehicle can lift but...

Страница 15: ...arts Cause 3 Sealing surface of parts scratched Troubleshooting Replace the damaged parts and related seals 4 4 Oil Seal Replacement 1 Replace the main oil seal of piston pump Failure symptom oil leak...

Страница 16: ...ry stab the oil seal with tool C and then thrust it 3 Apply a force in the direction of the arrow as sho wn in the figure thrust the oil seal completely out of the groove 4 Go on thrusting tool A and...

Страница 17: ...der no load of light load the re is no obvious sign of lower ing but it is lowered rapidly under heavy load Cause Damaged big piston seal Troubleshooting Replace the big piston seal i The big piston s...

Страница 18: ...rods from being scratched by foreign objects lower the vehicle to the bottom when idling unload the loads from the vehicle the loads must not be placed on the vehicle for a long time 3 The commissioni...

Страница 19: ...ant requirements the new oil must be filtered before use to ensure it is clean and free of impurities 11 After the inspection double check the parts that has been repaired make sure there is no proble...

Страница 20: ...t the forks by moving the handle index 1 up and down to the highest Rotate the handle a few degrees to the left as shown in Figure 01502 Remove the two screws index 2 and take out the battery cover in...

Страница 21: ...e controller index 5 can be replaced Change the controller settings Disconect the charger wire harness index 1 from the controller wire harness index 2 Then connect the handheld programmer to the conn...

Страница 22: ...19 REV 03 2015 ELECTRICAL 5 2 Electrical Schematic Diagram...

Страница 23: ...20 REV 03 2015 ELECTRICAL 5 3 Power Cables ITEM PART NAME 1 Battery connector cable 2 B cable 3 M1 cable 4 M2 cable 5 Connector assembly 6 Fuse Battery cable...

Страница 24: ...he currently active faults 5 4 4 General Checkout Carefully complete the following checkout procedure If you find a problem during the checkout refer to paragraph A 1 8 for further information The che...

Страница 25: ...verse switches and motor The motor should run proportionally faster with increasing throttle If not refer to Paragraph A 1 8 5 Put the controller into the test mode by using the Arrow Keys to select t...

Страница 26: ...key switch 5 Leave the key switch on and remove the in line fuse wire The vehicle status should continue to remain off 6 Cycle the key switch off and on Release the brake and apply the throttle The ve...

Страница 27: ...two ways Reading the appropriate display on the programmer Observing the fault codes issued by the panel mounted Status LED 5 4 8 1 LED Diagnostics During normal operation with no faults present the...

Страница 28: ...request 2 Short in motor or in motor wiring 3 Controller failure 6 HPD Fault HPD High Pedal Disable 1 Improper sequence of throttle and KSI push or inhibit pot 2 Misadjusted throttle pot 9 Main Fault...

Страница 29: ...wire open or shorted 2 Throttle pot defective 3 Wrong throttle type selected 2 Undervoltage Fault Battery voltage too low 1 Battery voltage 17 volts 2 Bad connection at battery or controller 6 Wiring...

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