Glomstad Motor GM-8504 PRO Use And Maintenance Manual

Low profile scissor lift surface mounted

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GM - 8504 PRO

USE

AND

MAINTENANCE

MANUAL

LOW PROFILE SCISSOR LIFT

SURFACE MOUNTED

1 / 28

REV. 01 2020

Table of Contents

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Summary of Contents for Glomstad Motor GM-8504 PRO

Page 1 GM - 8504 PRO MAINTENANCE MANUAL LOW PROFILE SCISSOR LIFT SURFACE MOUNTED 1 / 28 REV. 01 2020...
Page 2 PRINTING CHARACTERS AND SYMBOLS Throughout this manual, the following symbols and printing characters are used to facilitate reading: Indicates the operations which need proper care Indicates prohibition Indicates a possibility of danger for the operators Indicates the direction of access for motor vehicles to the lift BOLD TYPE Important information WARNING: before operating the lift and carrying out any adjustment, read carefully chapter 7 “installation”...
Page 3: Table Of Contents
CONTENTS GENERAL INFORMATION PRODUCT IDENTIFICATION PACKING, TRANSPORT AND STORAGE PRODUCT DESCRIPTION TECHNICAL SPECIFICATION SAFETY INSTALLATION OPERATION AND USE MAINTENANCE TROUBLESHOOTING 3 / 28 REV. 01 2020...
Page 4: General Information
CHAPTER 1 – GENERAL INFORMATION This chapter contains warning instructions to operate the lift properly and prevent injury to operators or objects. This manual has been written to be used by shop technicians in charge of the lift (operator) and routine maintenance technician (maintenance operator).
Page 5 Before operating the lift, operators must be familiar with the position and function of all controls, as well as with the machine features shown in the chapter “Operation and use” WARNINGS Unauthorized changes and/or modifications to the machine relieve the manufacturer of any liability for possible damages to objects or people.
Page 6: Product Identification
CHAPTER 2 – PRODUCT IDENTIFICATION The identification data of the machine are shown in the label placed on the control unit. LOGO Type: ………. Model: ………. Serial Number: ………. Year of manufacturing: ………. Capacity: ………. Voltage: ………. Power: ………. Use the above data both to order spare parts and when getting in touch with the manufacturer (inquiry).
Page 7: Packing, Transport And Storage
CHAPTER 3 - PACKING, TRANSPORT AND STORAGE Only skilled personnel who are familiar with the lift and this manual shall be allowed to carry out packing, lifting, handling, transport and unpacking operations. PACKING The packing of the lift is delivered in following components: •...
Page 8: Product Description
CHAPTER 4 - PRODUCT DESCRIPTION LIFT (ref. Figure 1) The lift has been designed for the lifting of motor-vehicles and for making them stand at any level between the minimum and maximum height. The maximum lifting weight, including any additional load on the vehicle, is as specified on the serial plate.
Page 9 OPERATION Platform lifting is carried out by the hydraulic unit which acts upon the cylinders. The platforms are raised simultaneously owing cross feeding of the hydraulic cylinders. Lowering, even though electrically controlled, is carried out by the weight of both the platforms and the load lifted.
Page 10: Technical Specification
CHAPTER 5 - TECHNICAL SPECIFICATION SIZE AND MAIN FEATURES (ref. Figure 2) 3000 kg APACITY Maximum lifting height 1900 mm Minimum height of lift 116 mm Length of the platform 1495 - 2030mm Width of platforms 600 mm Suggested free width between platforms 800 mm Overall length 2030mm...
Page 11 Figure 2 – LAYOUT 11 / 28 REV. 01 2020...
Page 12 HYDRAULIC UNIT The hydraulic unit is equipped with a Figure 3 – HYDRAULIC POWER UNIT Motor Loweing solenoid valve Pressure gauge Safety solenoid valve - P1 Oil tank Safety solenoid valve – P2 Use wear proof oil for hydraulic drive, in conformity with ISO 6743/4 rules (HM class). EST STANDARDS EATURES ALUE...
Page 13 Figure 4 - HYDRAULIC PLAN Platform P1 master cylinder Pressure overload valve Platform P2 master cylinder Oil filter Platform P1 slave cylinder Gear pump Platform P2 slave cylinder Motor Parachute valve - P1 Non return valve Parachute valve - P2 Pressure gauge Safety solenoid valve - P1 Lowering control valve - P1...
Page 14 Figure 5a – ELECTRICAL PLAN (400V/380V – 3PH) 220V T80VA 380V Power switch Lowering button Breaker Final lowering button Motor 2.6KW 3PH Photocell pass-by button Thermal relay Override button Transformer 80VA Emergency stop button Rectifier Top limit switch Contactor DC Safety height limit switch Lowering solenoid valve Photocell...
Page 15 Figure 5b – ELECTRICAL PLAN (230V/220V – 1PH) 220V T80VA 380V Power switch Lowering button Breaker Final lowering button Motor 2.2KW 1PH Photocell pass-by button Thermal relay Override button Transformer 80VA Emergency stop button Rectifier Top limit switch Contactor DC Safety height limit switch Lowering solenoid valve Photocell...
Page 16: Safety
CHAPTER 6 - SAFETY Read this chapter carefully and completely because it contains important information for the safety of the operator and the person in charge of maintenance. The lift has been designed and built for lifting vehicles and making them stand above level in a closed area.
Page 17 PERSONNEL CRUSHING RISKS During lowering of runways and vehicles, personnel must not be within the area covered by the lowering trajectory. The operator must be sure no one is in danger before operating the lift. Fig. 6a Fig. 6c Fig. 6b BUMPING RISK When the lift is stopped at relatively low height for working, the risk of bumping against projecting parts occurs.
Page 18 ELECTROCUTION RISKS Avoid use of water, steam, and solvent, varnish jets in the lift area where electric cables are placed and, in particular, next to the electric panel. RISKS RESULTING FROM IMPROPER LIGHTING Make sure all areas next to the lift are well and uniformly lit, according to local regulations. 6.10 RISKS OF BREAKING COMPONENT DURING OPERATION Materials and procedures, suitable for the designed parameters of the lift,...
Page 19: Installation
CHAPTER 7 - INSTALLATION Only skilled technicians, appointed by the manufacturer, or by authorized dealers, must be allowed to carry out installation. Serious damage to people and to the lift can be caused if installations are made by unskilled personnel. Before carrying out any operations, remember to insert the safety piece of wood between the lower booms and the base frame.
Page 20 HYDRAULIC SYSTEM CONNECTION (ref. fig. 12) • Open the front cover of the control unit. • Following the figure 12 connect hydraulic hose to the fittings referring to the letters shown on them. • Tighten fittings thoroughly. Make sure that the hoses are clear of any moving parts. Make sure to keep the hoses and fittings clean from dust.
Page 21 MAKE THE ELECTRICAL HOOKUP The hookup work must be carried out by a qualified electrician. Make sure that the power supply is right. Make sure the connection of the phases is right. Improper electrical hook-up can damage motor and will not be covered under warranty. DO NOT run the hydraulic unit with no oil.
Page 22 Limit switches must be adjusted during the installation of the lift Two proximity switches are installed on the scissor P2 for the top position and the safety height. If limit switches were not functioning properly, it’s possible to adjust them in the following way: 7.8.1 ADJUSTMENT OF TOP LIMIT SWITCH (fig.13 - 1) As the cylinders need the extra stroke about 70mm for bleeding, NEVER raise the lift higher than the top limit height 1900mm.
Page 23 installed, the lift will descend to the safety height. At this height, lower the lift completely by pressing the final lowering button (5). A beep sound is heard during the last travel; • Follow this procedure and repeat raise and lower the lift at least 2 times to bleed all the air out of the cylinders.
Page 24: Operation And Use
CHAPTER 8 - OPERATION AND USE Never operate the lift with any person or equipment below. Never exceed the rate lifting capacity. If an anchor bolt becomes loose or any component of the lift is found to be defective, DO NOT USE THE LIFT until repairs are made. Do not permit the electric control unit to get wet! 8.1 CONTROLS Figure 15 - CONTROL PANEL...
Page 25 OVERRIDE BUTTON (7) When pressed, the top limit switch is overridden and the lift is raised at extra70mm for bleeding the hydraulic system. PHOTOCELL PASS-BY BUTTON (8) When pressed, the photocell is excluded. EMERGENCY STOP BUTTON (9) When emergency occurs, turn this button to stop machines. Lift operation can be summarized into following steps: LIFTING •...
Page 26: Maintenance
CHAPTER 9 - MAINTENANCE Only trained personnel who knows how the lift works, must be allowed to service the lift. To service properly the lift, the following has to be carried out: • use only genuine spare parts as well as equipment suitable for the work required; •...
Page 27: Troubleshooting
CHAPTER 10 - TROUBLESHOOTING A list of possible troubles and solutions is given below ROUBLE OSSIBLE AUSE OLUTION The lift does not work The main switch is not turned on Turn the switch on Check power and restore if There is no power necessary The electrical wires are Replace...
Page 28 damaged The lifting capacity is The oil in the tank is not enough Fill oil in the tank not sufficient Check the pump and replace if The pump is faulty necessary The maximum pressure valve is not Adjust correctly adjusted correctly The lift does not lift or Leakages or presences of air into Bleed the hydraulic system...