MAINTENANCE MANUAL E-Series Machine Screw Jack MM-SJ-EMS-EN-01 Operation & Maintenance Instructions with Parts List
Contents E-SERIES MACHINE SCREW JACKS SPARES LIST & MANUAL MM-SJEMS-EN-01 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Introduction........................................................................................................................................................... 4 Product Code......................................................................................................................................................... 8 Standard Performance.......................................
1 Introduction 1.1 Translating Configurations Upright Available as: 1. Standard 2. Anti-Backlah 3. Anti-Rotation (Keyed) 4. Safety Nut Inverted Rod End Fork End Lead Screw Options: 1. Standard 1 x Pitch 2. 2 x Pitch 3. Anti-Rotation (Keyed) 4. Stainless Steel 5.
Introduction 1.2 Rotating Configurations Upright Safty Nut Double Hub Inverted Safety Nut Standard Nut Double Hub Nut Lead Screw Options: 1. Standard 1 x Pitch 2. 2 x Pitch 3. No Pilot End 4. Stainless Steel 5. Left Hand Thread 6.
1 Introduction 1.3 Introduction E-Series screw jacks are exclusively designed for carrying out linear motion movements in accordance with the specification detailed in Power Jacks product information and this maintenance manual. Any other application other than specified or one going beyond the above mentioned capacity is unauthorised. The manufacturer is not liable for damages resulting from such applications. The user alone has to bear the risk.
Introduction 1.6 Operating Personnel 1.6.1 The E-Series screw jacks are designed according to state-of-the-art technology and are in line with applicable safety regulations. However, the general risks of personal injury or damage to property connected with the use of such machinery cannot be completely eliminated. Therefore the units may only be assembled and operated by competent and qualified personnel and only be used for the authorised application. 1.6.
2 Product Code 2.0 Example KME1819-300-BR, 200 kN inverted keyed translating machine screw jack with top plate, 300 mm of stroke, bellows boots fitted to protect lifting screw and a single ended worm shaft extension on the right-hand side only. K ME 1819 300 BR ↓ ↓ ↓ ↓ ↓ (a) (b) (c) (d) (e) ↓ ↓ ↓ ↓ ↓ Prefix Basic Model Series No.
Standard Performance Model E2625 E2501 E1802 E1805 E1810 E1820 E1830 E1850 E18100 Capacity kN 5 10 25 50 100 200 300 500 1000 Lifting ScrewNOTE 1 mm 16 x 3 20 x 5 30 x 6 40 x 9 55 x 12 65 x 12 95 x 16 120 x 16 160 x 20 Option 1 5:1 5:1 6:1 6:1 8:1 8:1 102/3:1 102/3:1 12:1 Option 2 20:1 20:1 24:1 24:1 24:1 24:1 32:1 32:1 36:1 Option 1 5 for 3mm 1 for 1mm 1 for 1mm 1 for 1.5mm 1 for 1.5mm 1 for 1.5mm 1 for 1.5mm 1 for 1.
4 Installation 4.1 General Installation Notes 10 4.1.1 Before installing new parts, remove any rust preventative, protection grease etc. 4.1.2 Check before immediate installation for possible transit damage. 4.1.3 Components which have been stored for a long time (over 1 year) should be re-lubricated in working conditions before they are put into operation. 4.1.
Installation 4.2 General Instructions for fitting detachable ends on lead screws In most circumstances the screw jack is delivered with the required end fitting assembled to the unit. 4.2.1 It is important that the detachable ends are securely fixed to the lead screws and the following procedure should be adhered to. 4.2.2 Thread the detachable end on to the lead screw and tighten up as hard as possible without damaging the components. 4.2.
4 Installation 4.3 4.4 Unpacking and installation 4.3.1 Remove the E-Series screw jack(s) from their container. Dispose of the packaging material and the desiccant in an environmentally friendly way. 4.3.2 If it is necessary and in order to avoid damages, please use soft straps to transport or mount the screw jack. 4.3.3 For translating screw jacks in order to avoid damages, do not attach the straps to the lead screw but to the lead screw end fitting, cover pipe or to the screw jacks gearbox.
Installation 4.4.11 Drive Motor 4.4.11.1 Power Jacks recommend that when you purchase a screw jack requiring a motor mounted directly to the screw jack this is purchased as a complete item from Power Jacks. The motor is then pre-assembled to the screw jack. If you have opted to fit a motor yourself below is a typical procedure for common motor types. 4.4.11.2 Before mounting the drive motor, check the direction of rotation of the screw jack drive shafts relative to the linear motion of its lead screw.
4 Installation 4.4.13 Limit Switches – Rotary Cam Type (RLS) 4.4.13.1 4.4.13.2 4.5 Power Jacks recommend that when you purchase a screw jack requiring a Rotary cam type Limit Switch (RLS) mounted directly to the screw jack this is purchased as a complete item from Power Jacks. The RLS unit is then pre-assembled to the screw jack. If you have opted to fit a RLS unit yourself below is a typical procedure for common RLS unit types.
Operation 5.1 5.2 Operational Recommendations 5.1.1 Select a screw jack which has a rated capacity greater than the maximum load that may be imposed on it. 5.1.2 The screw jacks should have a greater raise than is needed in the actual installation. Should it be necessary to operate the screw jacks at the extreme limits of travel it should be done cautiously. 5.1.
5 Operation 5.2.3 Anti-Backlash Screw Jack – When To Use For reduced axial backlash of the lead screw in the screw jack select a model with the "AntiBacklash" mechanism. This is typically used when the load direction changes from tension to compression and minimal axial backlash is required. This design is only available for translating screw jacks. It can be combined with Anti-Rotation mechanism as well. 5.2.
Operation 5.2.11 Shock Loads on a Screw Jack Shock loads should be eliminated or reduced to a minimum, if they cannot be avoided, the screw jack model selected should be rated at twice the required static load. For severe shock load applications, the load bearings can be replaced with heat-treated steel thrust rings which is an option available from Power Jacks. Note this will increase the input torque by approximately 100%. 5.2.12 Axial Backlash in a Screw Jack 5.2.12.
5 Operation 5.2.15 Side Loads on a Screw Jack Screw jacks are designed primarily to move and position loads and any side loads (loads not acting axially on lead screw) should be avoided. The units will withstand some side loads, depending on the diameter of the lifting screw and the extended length of the lifting screw. Where side loads are present, the loads should be guided and the guides, rather than the screw jacks, should take the side loads - particularly when long raises are involved.
Operation 5.2.21 Corrosion Resistant Properties Screw Jacks can be supplied with alternative materials and/or paint specifications for high corrosive areas. These options include stainless steel, chrome plating, Electro-nickel plating, epoxy paint, etc. Check the unit specification is suitable before installation. 5.2.
5 Operation 20 5.2.28 Connecting Screw Jacks in Series The number of screw jacks that can be connected in series is limited by input torque requirements on the first worm shaft in the line. For the E-Series the torque on the worm shaft of the first screw jack should not exceed 300% of its rated full load torque (this does not include the 200kN screw jacks which are rated at 200%). 5.2.
Maintenance 6.1 General Maintenance Notes 6.1.1 Maintenance and replacement work must be done by an expert maintenance technicians trained in the observance of applicable laws on health and safety at work and the special ambient problems attendant on the installation. 6.1.
6 Maintenance 6.2 Regular Maintenance Also refer to section 6.3 6.2.1 Lubrication Of The Screw Jack 6.2.1.1 The screw jacks are shipped packed with grease (unless otherwise called for) which should be sufficient for one month of normal operation. 6.2.1.2 IMPORTANT NOTE – Lubricant suitability is dependent on duty cycle and ambient temperature. However in general recommended lubricants in section 7 are suitable for operation in an ambient temperature of -10ºC to +50ºC.
Maintenance 6.4 6.3.4 Check all bolted joints/couplings for wear, deformation or corrosion and tighten them down fully without over tightening. 6.3.5 A periodic check of backlash between lead screw and worm gear (translating screw jacks) or lead screw and nut (rotating screw jacks) is recommended to check wear on internal threads of worm gear. Backlash in excess of 25% thread thickness indicates that a replacement will be necessary to replace the worm gear / nut assembly. 6.3.
6 Maintenance 6.6 6.7 6.5.8.6 When installing the worm shaft, use shims to establish the correct axial float for the bearings Installed. 6.5.8.7 When screwing in the shell cap, establish the correct tightening torque by screwing down and backing off the shell cap until the torque figure for the model is achieved. 6.5.8.8 Lock the shell cap in place with locking fasteners. 6.5.8.9 For fasteners without spring lock washers use a chemical thread locking compound (e.g. Loctite). Replacing Parts 6.6.
Maintenance 6.9.2.2 6.9.3 6.10 Flush a unit’s interior thoroughly with a light solvent before refilling with new lubricant. Warning 6.9.3.1 Provide adequate ventilation during the use of cleaning agents; avoid prolonged breathing of fumes and contact with skin. 6.9.3.2 Use clean hot water or a soap solution for general cleaning of painted surfaces. 6.9.3.3 Dry parts thoroughly after cleaning. Painting 6.10.
7 Recommended Lubricants 7 Recommended Lubricants Table 1 - Normal Operation Manufacturer Lubricant Castrol Esso Gulf Mobiloil Power Petroleum Regent Shell Spheerol EPL2 Beacon EP2 Gulfcrown EP2 Mobilux EP2 BP Energrease LC2 Texaco EP2 Gadus S2V220AC2 (Alvania WR2) Table 2 - Arduous Operation Manufacturer Lubricant Castrol Esso Mobiloil Power Petroleum Regent Spheerol LMM2 Beacon EP2 Moly Mobilgrease XHP222 Special BP Energrease L2 1M Molytex 2 Shell Greases 5826 (Overseas) Shell Alvania HDX2 Sh
Spare Parts 8.1 Recommendations 8.1.1 E-Series screw jacks are fully supported by Power Jacks. Spare parts and repairs are available. 8.1.2 It is recommended that when a screw jack is used in a production critical environment where the cost of downtime far exceeds the cost of the screw jack a complete spare screw jack unit is stocked by the customer. This allows the worn/damaged unit to be returned to Power Jacks for repair by trained personnel.
9 Storage & Warehousing 9.1 General Storage Recommendations Recommendations for storing the products are indicated below: 9.2 9.1.1 Store in a clean and dry environment, free from dirt and dust. 9.1.2 Screw Jack Storage Temperature: -10°C to +50°C. 9.1.3 Do not store the unit in excessively humid conditions or where it is exposed to the weather (do not store outdoors). 9.1.4 Do not place product directly on the ground. 9.1.
Disposal of Units 10.1 General Disposal Guidance 10.1.1 This must only be done by operators trained in the observance of applicable laws on health and safety at work. 10.1.2 Do not dump non-biodegradable products, lubricants and non-ferrous materials (rubber, PVC, resins, etc.) into the environment. Dispose of all such materials as stipulated by applicable environmental protection legislation. 10.1.
11 Warranty 11.1 Warranty Definitions When used in these conditions the following words have the meanings set out opposite them below: Company: Contract: Customer: Goods: Writing: 11.2 Power Jacks Limited The contract between the Company and the Customer for the supply of the Goods.
General Assembly & Parts List 12.
12 General Assembly & Parts List 12.2 Translating Upright 5kN & 10kN 7A 51A 51A 2A 6A 3A 56 6B 53 62 6A 62 53 4 61 1 60 8A 6B 56 32 www.powerjacks.
General Assembly & Parts List 12.3 Translating Upright Anti-Rotation (Keyed) 5kN & 10kN 54A 7B 51A 51A 2E 59C 50B 6A 56 3A 6B 53 62 6A 62 53 4 61 1 60 8A 6B 56 www.powerjacks.
12 General Assembly & Parts List 12.4 Translating Upright Anti-Backlash 5kN & 10kN 51B 51B 2C 6A 5B 52 3B 6B 53 7A 62 62 56 52 6A 53 4 61 1 60 8A 6B 56 34 www.powerjacks.
General Assembly & Parts List 12.5 Translating Upright Anti-Backlash with Anti-Rotation (Keyed) 5kN & 10kN 7B 51B 51B 2C 6A 56 5B 52 6B 52 62 62 53 3B 6A 53 4 61 1 60 54A 6B 12 50B 56 8A www.powerjacks.
12 General Assembly & Parts List 12.6 Translating Inverted 5kN & 10kN 8A 2B 51A 51A 6A 62 6A 62 6B 3A 56 53 53 4 61 1 60 11A 6B 56 36 www.powerjacks.
General Assembly & Parts List 12.7 Translating Inverted Anti-Rotation (Keyed) 5kN & 10kN 8A 54A 2F 51A 51A 50B 6A 6B 3A 56 53 62 62 6A 53 4 61 1 60 11A 7B 6B 56 www.powerjacks.
12 General Assembly & Parts List 12.8 Translating Inverted Anti-Backlash 5kN & 10kN 8A 2D 51B 51B 6A 5B 52 62 62 52 6B 56 53 3B 6A 53 4 61 1 60 6B 56 38 www.powerjacks.
General Assembly & Parts List 12.9 Translating Inverted Anti-Backlash with Anti-Rotation (Keyed) 5kN & 10kN 8A 2D 51B 51B 6A 5B 52 52 56 53 3B 62 62 6B 6A 53 4 61 1 60 12 56 6B 50B 7B 54A www.powerjacks.
12 Section Name 12.10 Rotating Upright 5kN & 10kN 7C 5A 2G 51A 51A 6A 54B 62 3C 56 6B 53 6A 62 53 4 61 1 60 6B 56 8B 40 www.powerjacks.
Section Name 12.11 Rotating Inverted 5kN & 10kN 2H 8B 51A 51A 55 62 6A 6B 56 53 3C 62 6A 53 4 61 1 11C 60 7C 6B 54B 56 5A www.powerjacks.
12 General Assembly & Parts List 12.12 Translating Upright 25kN - 1000kN 7A 51A 51A 6A 2A 3A 59B* 50C* 10 57A 58 57B 6B 53 6A 62 62 53 4 61 6B 58 57B 57A 10 59B* 50C* * 4 per side, except 1000kN which has 6 per side 42 www.powerjacks.
General Assembly & Parts List 12.13 Translating Upright Anti-Rotation (Keyed) 25kN - 1000kN 54A 2E 51A 51A 7B 6A 50A 57B 57A 10 58 50C* 6B 59C 53 3A 59B* 62 62 6A 53 4 61 57B 6B 1 58 10 60 57A 8A 59B* 50C* * 4 per side, except 1000kN which has 6 per side www.powerjacks.
12 General Assembly & Parts List 12.14 Translating Upright Anti-Backlash 25kN - 1000kN 51B 2C 51B 6A 7A 57A 10 57B 5B 58 50C* 6B 52 62 62 53 52 3B 6A 59B* 53 4 61 6B 57B 1 58 10 57A 59B* 50C* * 4 per side, except 1000kN which has 6 per side 44 www.powerjacks.
General Assembly & Parts List 12.15 Translating Upright Anti-Backlash with Anti-Rotation (Keyed) 25kN - 1000kN 51B 2C 51B 6A 5B 57A 52 57B 52 62 3B 6A 10 58 50C* 53 6B 59B* 62 53 7B 4 61 57B 6B 1 58 10 59B* 50C* 50D 57A 60 54A 12 59C 8A * 4 per side, except 1000kN which has 6 per side www.powerjacks.
12 General Assembly & Parts List 12.16 Translating Inverted 25kN - 1000kN 8A 51A 2B 6A 7A 51A 57A 10 58 50C* 57B 6B 62 53 3A 59B* 62 6A 53 4 61 6B 57B 1 58 50C* 57A 10 59B* * 4 per side, except 1000kN which has 6 per side 46 www.powerjacks.
12 General Assembly & Parts List 12.17 Translating Inverted Anti-Rotation (Keyed) 25kN - 1000kN 8A 2F 51A 51A 54A 6A 50B 59C 62 62 57A 10 58 57B 50C* 7B 6B 53 3A 59B* 6A 53 4 61 6B 57B 1 58 50C* 10 60 57A 11A 59B* * 4 per side, except 1000kN which has 6 per side www.powerjacks.
12 General Assembly & Parts List 12.18 Translating Inverted Anti-Backlash 25kN - 1000kN 8A 51B 2D 51B 6A 57A 57B 5B 52 52 62 58 50C* 6B 53 59B* 3B 6A 62 10 53 7A 4 61 6B 57B 1 58 50C* 57A 10 59B* * 4 per side, except 1000kN which has 6 per side 48 www.powerjacks.
12 General Assembly & Parts List 12.19 Translating Inverted Anti-Backlash with Anti-Rotation (Keyed) 25kN - 1000kN 8A 51B 2D 7B 6A 51B 57A 57B 5B 52 10 58 50C* 52 6B 3A 62 6A 62 53 59B* 53 4 61 6B 57B 1 58 60 12 57A 10 59B* 50C* 54A 50D 59C * 4 per side, except 1000kN which has 6 per side www.powerjacks.
12 General Assembly & Parts List 12.20 Rotating Upright 25kN - 1000kN 7C 5A 2A 2A 2G 11B 54B 6A 3C 6A 59B* 50C* 57B 10 57A 58 6B 53 51D 62 55 53 62 4 61 10 57B 57A 6B 58 59B* 50C* * 4 per side, except 1000kN which has 6 per side 50 www.powerjacks.
12 General Assembly & Parts List 12.21 Rotating Inverted 25kN - 1000kN 51A 2H 8B 51A 55 6A 51D 3C 6A 10 57A 57B 54B 7C 58 50C* 6B 53 59B* 62 62 53 4 61 6B 57B 1 58 10 59B* 57A 60 11C 50C* 5A * 4 per side, except 1000kN which has 6 per side www.powerjacks.
Power Jacks are an industry leader in the manufacture of quality industrial lifting, positioning,material handling and power transmission equipment. The products are supplied globally to most industry sectors including nuclear, water, oil & gas, chemical, defence, steel, aluminium, automotive, and others. PRECISION SCREW JACKS . ELECTRIC LINEAR ACTUATORS . PLANETARY ROLLER SCREWS . SPIRAL BEVEL GEARBOXES .
