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MPJ 4.0/750 1S HM
MPJ 4.0/750 1S HA
MPJ 16.5/750 1S HM
MPJ 16.5/750 1S HA
MPJ 16.5/750 1S FA
MPJ 16.5/750 1S TA
MPJ 16.5/750 1S HAE
MPJ 20/750 1S HM
MPJ 20/750 1S HA
MPJ 20/750 1S FA
MPJ 20/750 1S TA
Original Operating Instructions
Installation | Operation | Service
MPJ 16.5/1200 2S FA
MPJ 16.5/1200 2S TA
MPJ 16.5/1200 2S HA
MPJ 16.5/1200 3S FA
MPJ 16.5/1200 3S TA
MPJ
Pit Jacks
BA550001-en
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Table of Contents
Related Manuals for MAHA MPJ Series
Summary of Contents for MAHA MPJ Series
- Page 1 Pit Jacks Original Operating Instructions BA550001-en Installation | Operation | Service MPJ 4.0/750 1S HM MPJ 16.5/1200 2S FA MPJ 4.0/750 1S HA MPJ 16.5/1200 2S TA MPJ 16.5/1200 2S HA MPJ 16.5/750 1S HM MPJ 16.5/750 1S HA MPJ 16.5/1200 3S FA MPJ 16.5/750 1S FA MPJ 16.5/1200 3S TA MPJ 16.5/750 1S TA...
- Page 2 MAHA's claim is to also be a leader in the areas of reliability, safety and sustainability – this can be seen in many details that have been developed with these aspects in mind.
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Page 3: Table Of Contents
Contents General safety instructions ..........................7 Symbols and signal words .......................... 7 1.1.1 Personal injury ............................7 1.1.2 Damages to products, machinery and equipment ................7 Basic general safety instructions ....................... 7 Safety regulations for handling hydraulic oil ....................8 Procedure in the event of a malfunction .................... - Page 4 Optional load handling attachments ......................34 Maintenance unit ............................34 Special accessories Bleeding ........................36 Foot pump ..............................36 Operation ................................ 37 10.1 Control elements ............................37 10.1.1 MPJ 1S ..............................37 10.1.2 MPJ 2S | MPJ 3S ..........................38 10.1.3 MPJ HAE ..............................
- Page 5 13.1 Safety regulations ............................58 13.2 Washing / cleaning / oiling ........................58 13.3 Empty stroke .............................. 58 13.4 Maintenance unit ............................58 13.5 Lubricate ..............................59 13.6 Change hydraulic oil ..........................59 13.6.1 MPJ 1S ..............................59 13.6.2 MPJ 2S | MPJ 3S ..........................63 13.6.3 MPJ HAE ..............................
- Page 6 [Blank page] BA550001-en...
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Page 7: General Safety Instructions
General safety instructions Symbols and signal words 1.1.1 Personal injury DANGER indicates an imminent danger. Death or severe injuries will follow if this danger is not avoided. WARNING indicates a potentially imminent danger. Death or severe injuries may follow if this danger is not avoided. -
Page 8: Safety Regulations For Handling Hydraulic Oil
• Turn off the main switch and secure against unauthorised use. • MAHA Service Center by phone +49 8374 585-100 or via your contact per- son. Procedure in the event of an accident •... -
Page 9: Requirements For Service Personnel
• show knowledge and experience in handling the equipment and the dangers posed. • be instructed on record in security guidelines. Requirements for service personnel Persons entrusted with the installation, maintenance and/or dismantling of the system must also: • be demonstrably trained and instructed in the required work, •... -
Page 10: Service Life
WARNING Any use beyond the intended use is contrary to the intended use, e.g. it is prohibited, • use the jack to support lifted loads • lift more than one axle at the same time • to step onto or ride on the load handling attachment •... - Page 11 smaller pump cross-section, the high-pressure hand pump offers the possibility of achieving higher hydraulic pressures and thus also lifting heavier loads. With pneumatic-hydraulic pit jacks, the compressed air is used to drive an air motor that is firmly bolted to the hydraulic block. This oscillating pressure intensifier transports the hydraulic oil.
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Page 12: Safety Devices
Safety devices Pressure relief valve A pressure relief valve is installed between the pump and the non-return valve. This pressure relief valve limits the hydraulic pressure that can be generated by the pump and thus prevents loads that are too heavy from being lifted. The pressure relief valve is adjusted to the load capacity and set at the factory. -
Page 13: Technical Data
Technical data Relevant pit dimensions BA550001-en... -
Page 14: Nomenclature
Nomenclature MAHA PIT JACK Type of drive 1200 16.5 Load capacity in t Design of the chassis Stroke in mm Number of telescopic steps Telescopic steps: S - Number of telescopic steps Design of the chassis: H - Suspended version F - "Floor" = Floor-running, freely movable version T - "Track"... -
Page 15: Pit Jack
Pit jack 4000 16 500 20 000 16 500 Load capacity [kg] Inside diameter of mounting (spigot) [mm] Outer diameter (piston rod) [mm] Dead weight of pit jack [kg] Max. Tare weight with chassis [kg] Actuator 8...max. 10 bar at 350 L/min Drive 2.5 kW, 3 x 400 V, 50 Hz, 16A... -
Page 16: Suspended Chassis
6.4.1 Suspended chassis Suspended chassis run on steel profiles at the edge of the pit and bear the code letter "H" (vlg. Nomenclature). For detailed dimensions see appendix Overview For pit jacks up to and including 16.5 t Track width +/- 70 mm adjustable Cylindrical or conical rollers For pit jacks up to and including 16.5 t Track width +/- 70 mm adjustable... -
Page 17: Rail-Guided Chassis
6.4.2 Rail-guided chassis Rail-guided chassis run on steel profiles on the pit floor and bear the identification letter "T" (vlg. Nomenclature). See appendix for dimensions. Overview For pit jacks up to and including 16.5 t Adjustable track Cylindrical or conical rollers Internal or external rollers Internal chassis roller Cylindrical shape... -
Page 18: Freely Movable Chassis
External chassis roller Cylindrical shape Without wheel flange - only with roller for guidance on the pit wall Suitable for flat steel from a width of 55 mm 6.4.3 Freely movable chassis Freely movable chassis run on the pit floor or outside the working pit and bear the code letter "F"... -
Page 19: Permitted Pit Jack-Chassis Combination
Permitted pit jack-chassis combination Load Lifting Telescopic stages Driving range Drive Model capacity distance MPJ for cars and vans MPJ 4.0/750 1S HM 4.0 t 750 mm MPJ 4.0/750 1S HA MPJ for trucks and buses MPJ 16.5/750 1S FA MPJ 16.5/750 1S TA 750 mm MPJ 16.5/750 1S HM... -
Page 20: Danger Zone
Danger zone WARNING No persons may be in the danger zone during the lifting or lowering process. The danger zone is defined as the pit jack incl. test vehicle plus the safety distances specified in the following table. 1000 mm Lifting height of jack (750/1200 mm) 2000 mm 2000 mm... -
Page 21: Transport, Handling And Storage
Transport, handling and storage Safety instructions WARNING Wear personal protective equipment. Standing under a suspended load is prohibited. The transport and storage of packages is only permitted using original transport racks. Observe the max. stacking height. Before removing the packaging straps, secure the packages against falling and maintain a safe distance. -
Page 22: Packaging Information
Packaging information Delivery is always on Euro pallets (800 mm x 1200 mm). Max. Dimensions of the package (L x W x H): 1593 x 1026 x 1145 mm Max. Weight of the package: 572 kg The center of gravity of the packages is located within the base area of the Europallet. -
Page 23: Installation
Installation Air pit jacks may only be operated with dry, lubricated compressed air in accordance with ISO 8573-1:2010 [1:4:2]. To ensure the required compressed air quality, which is necessary for reliable operation of the pit jack, a maintenance unit must be installed in the supply line in the immediate vicinity of the pit jack (line length max. -
Page 24: Assembly Of The Rail-Guided Chassis
NOTICE The chassis is matched to the pit specified in the order. Use in other pits is only permitted after consultation with MAHA. For occupational safety reasons, the jack must be disconnected from the chassis during the installation process. To do this, remove all four hexagon head screws (A). - Page 25 that both side sections are extended as far as possible (see dimension "X"). Secure pull-outs with hexagon head screws (B). Set a tightening torque of 50 ±5 Nm. Lower the pit jack into the pit using suitable lifting gear. Mount the pit jack on the chassis in the reverse order to disassembly. Tighten the four hexagon head screws (A) to fix the pit jack with a tightening torque of 85 ±5 Nm.
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Page 26: Mounting Pit Jack In Suspended Chassis
Mounting pit jack in suspended chassis 8.3.1 Adjustable chassis up to 16.5 t Required aids and tools • Lifting gear (overhead crane, forklift, etc.) • Torque wrench up to and including 85 Nm • 2 round slings • Socket wrench with socket A/F 19 •... - Page 27 From this step onwards, at least a second person, and if necessary other persons, must be called in to assist with the installation work. Slide the chassis supports sideways onto the lifting rollers (Caution: Danger of tipping!) and secure with lashing straps. Make sure that the lashing straps are positioned as close as possible to the lift.
- Page 28 Attach the sling diagonally to two sling rolls with a round sling. Then lift the jack including chassis using lifting gear and lower it into the center of the pit. The side panels must be inserted for this. Align the lift in the L-profile or in the U-profile depending on the installation situation.
- Page 29 ≤ 10 mm BA550001-en...
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Page 30: Customized Chassis 20 T
8.3.2 Customized chassis 20 t The chassis for load capacities of 20 t are welded to size, i.e. no side sections can be moved or beams removed. Observe the installation procedure described in the section "Installation of suspended chassis". The same aids and tools are required. -
Page 31: Customized Chassis Up To 16.5 T For Telescopic Pit Jacks
of the lift and the counter-rotation of two lashing straps to prevent the lift from slipping. Attention: Crushing hazard After securing the jack in the chassis, it can be inserted into the pit (use the existing pit opening). Push the pit jack through the entire working pit. At the widest point of the working pit, the clearance between the roller collar and the pit profile may be 5 mm on both sides (max. - Page 32 Lower the pit jack into the pit in an upright position using suitable lifting gear. Mount the jacks on the chassis in the reverse order to that for disassembly. Tighten the four hexagon head screws (A) to fix the pit jack with a tightening torque of 85 ±5 Nm.
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Page 33: Floor-Running Chassis
Floor-running chassis Pit jack or gearbox jack are fully assembled in the chassis. Remove the packaging and attach the pit jack incl. chassis to the head plate using two round slings (see illustration). Lift the pit jack from the Europallet and move it to its destination (pit/floor). BA550001-en... -
Page 34: Optional Equipment
Lower the load safely, without slipping and centrally to the center of gravity. Maintenance unit MAHA offers a maintenance unit for its air-operated pit jacks that additionally supports the air quality requirements. This maintenance unit can be ordered together with the pit jack, but can also be retrofitted. - Page 35 BA550001-en...
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Page 36: Special Accessories Bleeding
Special accessories Bleeding See section "Bleeding". Foot pump The manually operated foot pump enables precise positioning of the load handling attachments under the vehicle or gearbox. This option is available for telescopic pit jacks. This option can be retrofitted at any time. -
Page 37: Operation
Operation 10.1 Control elements 10.1.1 MPJ 1S The MPJ 1S pit jack series is optionally equipped with a manual pump or a pneumatic-hydraulic pump. Both variants enable 2 lifting speeds The rapid traverse is very suitable for moving the load handling attachment close to the lifting point unloaded. The manual pump has two pump pistons for this purpose. -
Page 38: Mpj 2S | Mpj 3S
10.1.2 MPJ 2S | MPJ 3S Standard scope of delivery Drain spindle Maintenance unit Oil filler plug Load lift control (foot-operated) Rapid control (foot-operated) Oil sight glass Option Foot pump Rapid control (manually operated) Load lift control (manually operated) Foot pedal Hand-held remote control with magnetic holder Quick coupling Two-stage and three-stage pit jacks differ only in the number of lifting pistons,... - Page 39 BA550001-en...
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Page 40: Mpj Hae
10.1.3 MPJ HAE The electro-hydraulic pit jack is equipped with a 5 m long cable for the power supply. To operate the pit jack, an appropriate earthed socket is required within reach of this cable. Master switch Lift" button Lower" button Potentiometer Sheet metal cover Oil tank... -
Page 41: General Safety Instructions For Safe Operation
10.2 General safety instructions for safe operation WARNING Pit jacks and gearbox jacks are not suitable for supporting the load over a longer period of time. Work under a raised load may only becarriedout using suitable supports. Safety devices must not be bypassed or rendered unusable in any other way. Riding along with the load or on the load handling attachment is prohibited Climbing up the lifted vehicle is prohibited. -
Page 42: Positioning
(e.g. with lashing straps). The pit jacks are supplied with a simple holder as standard. MAHA can supply suitable load handling attachments for loads that cannot be lifted safely with these. -
Page 43: Lift
MPJ HAE WARNING Lay the cable connection to the socket outlet in such a way that there is no risk of tripping. Ensure that the connection cable is plugged in. To make the pit jack ready for operation, switch on the main switch. The pit jack is ready for immediate use. -
Page 44: Mpj 1S
During the lifting and lowering process, there must be no persons or objects in the safety area of the load and pit jack. Carefully position the load handling attachment on the load during the load stroke and lift it free briefly. Only lift the load after checking that it is safe to do so. -
Page 45: Mpj Hae
A strong magnet in the head of the hand control allows it to be securely attached to flat surfaces of the pit jack. The options are not mutually exclusive, so that all three actuation options are available when fully equipped. The design ensures that none of the three drive options sets another in motion. -
Page 46: Lowering
10.7 Lowering Lowering safety WARNING The load must be lowered slowly and carefully to avoid crushing injuries. Before lowering, the load on the supports must be lifted free in order to remove the supports. The instructions and procedure for lifting (at the beginning of this chapter) must also be observed for free lifting. -
Page 47: Mpj Hae
The lowering process is initiated by pressing the corresponding pushbutton. During the lowering process, the lowering speed can be changed using a rotary potentiometer. MAHA strongly recommends adhering to the following procedure when lowering in order to avoid damage to property and personal injury: •... -
Page 48: Extend
10.9 Extend WARNING Before extending the vehicle, the jacks must be in the lower home position to prevent damage to the jacks and vehicle. Exit only at walking speed and only if there are no persons in the pit or in the driveway. -
Page 49: Troubleshooting
Troubleshooting WARNING • The relevant health and safety regulations must be observed. • Wear personal protective equipment. • Service work may only be carried out by authorised service technicians. • Repair, maintenance and set-up work may only be carried out when the ma- chine is at a standstill. -
Page 50: Manual/Pneumatic-Hydraulic Pit Jacks
11.1 Manual/pneumatic-hydraulic pit jacks Malfunction Possible cause Remedy Drain spindle not fully Replace drain spindle closed; spring does not and/or spring; contact close completely service Air motor runs (typical Oil level on the pit jack noise), but does not lift too low due to transport any load Top up oil... - Page 51 Malfunction Possible cause Remedy Air filter completely clogged; dirt from the Cleaning pipe network Air motor does not run at Air motor runs dry, stops; no oil in the maintenance Top up oil unit Air motor defective Replace Air filter clogged; dirt Cleaning from the pipe network Air express control does...
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Page 52: Electrohydraulic Pit Jacks
11.2 Electrohydraulic pit jacks Malfunction Possible cause Remedy Check mains connection Pit jack does not respond no electricity Check fuses in the control box Check pump for running Pump / motor defective noises Piston rod does not Check connections in the extend control box (push-button) Control defective... - Page 53 Malfunction Possible cause Remedy Replace valve / coil Valve / coil defective (customer service) Check type designation Wrong valve (EMP = prop. Valve) Check type designation Wrong valve (EMP = prop. Valve) Hydraulic valve / block See above defective (rare) Check the piston rod and guide bush for visible damage...
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Page 54: Regular And Recurring Inspections
Regular and recurring inspections WARNING All tests must be carried out in an unloaded state. Irrespective of the periodic inspections, subsequent inspections must be carried out by the operator and user at the specified intervals. Of course, the operator can entrust external experts with these inspections during the year. The same applies to the rectification of any defects identified. -
Page 55: Weekly
12.2 Weekly 12.2.1 Piston rod The piston rod must be extended empty once a week (see also Maintenance) to bleed the pit jack. The piston rod must be checked for damage during this process. Damaged piston rods lead to leaks in seals. Damage to the piston rod allows cleaning agents and salt water to penetrate unhindered. -
Page 56: Movement Parts
Needle sleeve Needle sleeve Chassis roller Circlip Grease nipple Funnel inside and outside Special attention must be paid to rollers, as they must carry the entire load on the one hand and ensure easy movement of the lift and chassis on the other. Track rollers must therefore be inspected for deformation and damage to the running surface (chipping, flattening, etc.) and the wheel flange (chipping, burrs, etc.). -
Page 57: Pre-Filter
If necessary, the brake must be readjusted as described in the section "Adjusting the pit jack brake". 12.3.5 Pre-filter Pneumatically operated pit jacks have a pre-filter at the compressed air inlet, which is necessary to protect the control unit. To check, disassemble the compressed air coupling and remove the hexagonal threaded pin behind it. -
Page 58: Servicing
Servicing Regular maintenance ensures the function and operational safety of the lift and contributes to its value retention. To ensure the safe operation and function of the lift, maintenance must be carried out at the latest after the intervals specified in the maintenance schedule. -
Page 59: Lubricate
Information on the oil specification and quantity can be found in the appendix. To ensure function and reliability, the use of alternative hydraulic oil must be checked by MAHA. The oil filler plug is located on the top plate, see Fig. - Page 60 Drain oil • Provide an oil-tight container. • Remove the screw plugs and sealing rings, see illustration below, and drain the hydraulic oil into an oil-tight container. • Reseal the oil drain plugs with new sealing rings. BA550001-en...
- Page 61 Fill with hydraulic oil Fill in the required amount of hydraulic oil via the oil filler plug (see illustration) and close the oil filler plug again with a new sealing ring. Bleeding the hydraulic system Use personal protective equipment! Pit jack is unloaded, freely accessible and cleaned! The pit jack is fully retracted and load-free! Check the oil level and top up with hydraulic oil if necessary.
- Page 62 Bleeding by means of hand pumps Pump the pit jack using the fast stroke (C) until the pit jack has moved approx. 100-200 mm. Immediately afterwards, pump up the load stroke (B) and also perform the lifting movement without pausing for approx. 100-200 mm. Now actuate the fast stroke (C) pump again and move the pit jack to the mechanical stop.
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Page 63: Mpj 2S | Mpj 3S
NOTICE Information on the oil specification and quantity can be found in the appendix. To ensure function and reliability, the use of alternative hydraulic oil must be checked by MAHA. Tools required • Waste oil container 40 l • Transparent collecting vessel 5l •... - Page 64 Fill with hydraulic oil Step 1: Oil quantities see also appendix Remove the M14x1.5 screw plug (B). Fill in the following partial quantities: 11.5 l 18.5 l 3 Close the oil filler opening with the screw plug. Step 2: Place a cloth around the piston rods below the bleed screw. Remove the screw plug including the USIT sealing ring.
- Page 65 Connect the bleeder valve (C) with a pneumatic hose, outer diameter 8 mm (calibrated). The recommended hose length is 1.25 m. The open end of the hose must be fed into the transparent collection container. The bleeder valve (C) can now be unlocked and the hydraulic system can be flushed using the load stroke .
- Page 66 Bleeding the hydraulic system WARNING Use personal protective equipment! Pit jack is unloaded, freely accessible and cleaned! The pit jack is fully retracted and load-free! The pit jack must be disconnected from the compressed air supply. Bleeding block Check the oil level and top up with hydraulic oil if necessary. The target fill level of the hydraulic oil is in the center of the oil sight glass when retracted.
- Page 67 Check the condition of the hydraulic oil via the oil sight glass and replace if necessary (see section "Replacing the hydraulic oil"). Place a cloth around the piston rods below the G1/8" screw plug. The screw plug including the USIT sealing ring can then be removed (A). Immediately afterwards, screw in the bleeder valve (B) and tighten it hand-tight.
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Page 68: Mpj Hae
NOTICE Information on the oil specification and quantity can be found in the appendix. To ensure function and reliability, the use of alternative hydraulic oil must be checked by MAHA. Drain oil • The pit jack must be disconnected from the power supply. - Page 69 Fill with hydraulic oil Remove the sheet metal cover (B) and open the oil filler cap underneath. 2 Fill in the first partial quantity of 10 liters of hydraulic oil and move the pit jack to 2/3 of the lifting height. 3 Then fill in another 5 liters of hydraulic oil.
- Page 70 4 Fully retract the pit jack and then extend it again. If the piston rod moves smoothly, the bleeding is complete. 5 A slight jerking (in the millimeter range) of the piston rod can be quite normal; this may occur when the seal set is replaced and normalizes within a few operating hours.
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Page 71: Setting The Pit Jack Brake
13.7 Setting the pit jack brake Lifting brake Shim Pit jack roller The brake is used to fix the pit jack in the chassis. The brake lever moves an eccentric. This in turn presses on the back of one of the four rollers. -
Page 72: Repairs
Repairs WARNING Service and repair work on the lift may only be carried out by authorised and trained specialist personnel! The lifting system and its components were extensively tested during development and before marketing. Original spare parts correspond in quality and condition to those of a new lifting system. - Page 73 Open the drain spindle slightly until the piston rod can be turned by hand. (the piston rod may drop slightly). Disconnect the pneumatic control line from the valve (valve is located behind the drain spindle and the air motor). BA550001-en...
- Page 74 Place an oil-tight container under the hose. Remove the wiper using a slotted screwdriver. Scraper is destroyed in the process. Push the scraper upwards. 10 The retaining ring can then be removed with pliers. BA550001-en...
- Page 75 11 Remove the pneumatic control line on the pit jack, which is located directly below the head plate. 12 Connect the jack to the compressed air supply and actuate the load stroke! WARNING Danger due to incorrect operation! 13 Extend the piston rod using the load stroke, as shown in the following picture.
- Page 76 14 The seal kit must be replaced as originally installed. The structure of the sealing package with full equipment is shown here as an example. Scraper NDA.07009510 Piston rod O-ring NDO.08603 Guide bushing O-ring NDO.07003 Spacer bushing O-ring NDO.03003 Piston Slotted rings NDN.08009010 Hexagon nut A/F 46 BA550001-en...
- Page 77 15 To replace the seal kit, the hexagon nut A/F 46 must be removed (remove or install using an impact wrench). The piston, the spacer bushing and the guide bushing can then be removed. Make sure that the components are dismantled downwards.
- Page 78 22 The piston rod with the hydraulic components can then be carefully reinserted into the pit jack. Make sure that the piston rod is inserted vertically into the pit jack. 23 As soon as the seals in the cylinder tube are tight, the lowering spindle of the pit jack must be actuated so that the piston rod in the pit jack can be lowered.
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Page 79: Seal Kit Replacement Mpj 2S | 3S
14.2 Seal kit replacement MPJ 2S | 3S 14.2.1 Tools required Special tools (see table) are required to dismantle the MPJ 2S and MPJ 3S pit jack. Mounting wrench for guide bushing level 3 Material number: 1283817 Mounting wrench for guide bushing stage 2 Material number: 1283278 Mounting wrench for guide bushing stage 1 Material number: 1283279... -
Page 80: Overview Of Components For Seal Kit
14.2.2 Overview of components for seal kit Telescopic stage Description Dimensions Scraper 80x88x7 Rod seal 80x90x11 Stage 1 for 2S/3S Guide tape 80x85x25 O-ring Ø100x2 Scraper 115x127x10 Rod seal 115x125x13 Stage 2 for 2S/3S Guide tape 115x120x25 O-ring Ø150x3 Piston seal 140x125x10 Scraper 170x182x10... - Page 81 Pull the piston rod up a further 200 mm. The guide bush can then be unscrewed using the installation wrench. Loosen the guide bush by tapping lightly (with a rubber mallet) on the installation wrench. Completely pull out the piston rod including piston and guide bushing and carefully place on a clean surface.
- Page 82 the four cylinder screws (minimum assembly torque 108 Nm) and M30x1.5 nut using an impact wrench. Work steps Section 2: Fit the installation wrench and screw in the threaded mandrel. Using a lifting device, pull the cylinder tube upwards on the eyebolt with a slight pull (approx.
- Page 83 The guide bush can be pulled off upwards after the threaded mandrel has been removed. To remove the piston, first remove the grub screw. The piston can then be unscrewed. If this does not come loose, there are two M8 threads in the piston crown for attaching a disassembly aid.
- Page 84 NOTICE In the illustration on the right, a non-return valve can be seen inside the piston, see large arrow. Check for damage and contamination. Generously coat the area inside the guide bush with hydraulic oil and push the guide bush onto the cylinder barrel from below. Then tighten the piston hand-tight and secure with a grub screw.
- Page 85 Work steps Section 3: Fit the installation wrench and screw in the threaded mandrel. Using a lifting device, pull the cylinder tube upwards on the eyebolt with a slight pull (approx. 200 mm). Lifting the jack off the ground should be avoided.
- Page 86 Fit a new set of seals to the cleaned guide bush and piston. To keep the O- ring in position, we recommend applying multi-purpose grease to the groove for the O-ring. NOTICE In the illustration on the right, a non-return valve can be seen inside the piston, see large arrow.
- Page 87 Work step: Inserting sections 1 to 3: Before inserting the secstions, ensure that the interior is clean and that the cylinder tube is thinly coated with hydraulic oil. Never insert the sections into the pit jack by hand. Always use suitable lifting gear! When inserting in the groove ring area (on the piston), ensure that the groove rings do not come into contact with the thread of the cylinder barrel.
- Page 88 Tighten the guide bush hand-tight using the installation wrench and then fix it in place with a light tap (rubber mallet) on the installation wrench. Lower the section completely and remove the installation wrench and threaded mandrel. Insert the remaining sections into the pit jack as described above. Install the screw plugs on the largest and smallest guide bush.
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Page 89: Replace Hydraulic Unit
14.3 Replace hydraulic unit 14.3.1 Replace hydraulic unit MPJ 1S When replacing the hydraulic unit, the hydraulic oil must also be changed at the same time. Carry out section "Changing the hydraulic oil MPJ 1S". The hydraulic oil must be drained for further steps. -
Page 90: Replace Hydraulic Unit Mpj 2S | 3S
14.3.2 Replace hydraulic unit MPJ 2S | 3S Only replace the hydraulic unit at the same time as an oil change. "Changing the hydraulic oil on the MPJ 2S | 3S". The hydraulic oil must be drained for the next steps. Remove the cover (if necessary, mark the air hoses to avoid confusion). -
Page 91: Annex
Annex 15.1 Tightening torques Tightening torques for all screws without torque specification: Thread Strength class Tightening torque 6 Nm 10 Nm 25 Nm 50 Nm 85 Nm 15.2 Load application of the chassis Pit jack type F.L1 [kN] F.L2 [kN] F.R1 [kN] F.R2 [kN] Load application *MPJ 4.0/750 1S H... -
Page 92: Hydraulic Oil Filling Quantities
MPJ 16.5/750 1S T 15.83 116.54 28.73 FG roll MPJ 20.0/750 1S T 16.38 10.39 118.98 75.45 FG roll *Worst-case assumption: FGH 14.P-120 without release; pull-outs approx. 14 mm extended to a total width of B dimension = 1083 mm. Maximum asymmetrical force transmission via rollers into the foundation. -
Page 93: Dimensions Adjustable Chassis
15.4 Dimensions adjustable chassis B min...B max [mm] Outer dimension (pushed together) [mm] 580 to 720 640 to 780 700 to 840 760 to 900 820 to 960 880 to 1020 940 to 1080 1020 1000 to 1140 1080 1060 to 1200 1140 BA550001-en... -
Page 94: Overview Of Chassis Rollers
15.5 Overview of chassis rollers [mm] [mm] [mm] [mm] FG roller (conical) 1267244 Standard ROLLER 6- FG roll RD 1267245 95x50 FG roller I-profile with 1267253 14 % ROLLER 6- inclination Difference dimension B FG roll RD 1128378 44.5 > 10 mm; 95x48 without collar... - Page 95 [mm] [mm] [mm] [mm] FG roller 1267255 Collar 20 mm ROLLER 6- FG roller 1267254 Collar 15 mm ROLLER 6- Roller for 1267252 N02.31-13 U80 profiles I-profile with 1267249 FG roll 14 % inclination Chassis 1267248 roller RD Tread 35 mm 95x45 FG roller Tread-Ø...
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Page 96: Electrical Circuit Diagram Mpj Hae
15.6 Electrical circuit diagram MPJ HAE 15.7 Fluid plans 15.8 Operating instructions Maintenance unit 15.9 CE declarations of conformity See following page(s). BA550001-en... - Page 108 Postfach 6040 Quelltext: deutsch D-73726 Esslingen Version: 9712c Telefon (0711)347-0 Teile-Nr.: 380645 Bedienungsanleitung Operating Instructions Bruksanvisning Proportionalöler Proportional lubricator Proportionell smörjanordning Typ LOE-...-D-... Type LOE-...-D-... Typ LOE-...-D-... Einbau und Inbetriebnahme nur von autorisiertem Fachpersonal, gemäß Fitting and commissioning to be carried out by qualified personnel only in accordance Montering och idrifttagning får endast utföras av auktoriserad fackkunnig personal i Bedienungsanleitung.
- Page 109 Product Design LFR(S)-/LR(S)-/LF(M.../X)-...-D Filter regulator, Pressure regulator, Filter 1 Rotary knob 2 Plug screw 3 Pressure gauge 4 Drain screw Festo SE & Co. KG 5 Filter bowl Ruiter Straße 82 73734 Esslingen 6 Housing Germany +49 711 347-0 www.festo.com Instructions | Operating 8121613 2019-11k...
- Page 110 2. Screw in threaded bolt FRB-D 9. Tightening torque: 2.5 – 0.5 Nm 2. Unscrew the filter bowl 5. 3. Disassemble the old filter cartridge: – LFR(S)/LF: unscrew the filter plate and remove the filter cartridge. – LFM.../LFX: unscrew the filter cartridge. 4.
- Page 111 MAHA Maschinenbau Haldenwang GmbH & Co. KG, Hoyen 20, 87490 Haldenwang, Germany Haldenwang, 2021-03-15 Andreas Maier CE-Bevollmächtigter | Authorised CE Representative MAHA Maschinenbau Haldenwang GmbH & Co. KG ꞏ Hoyen 20 ꞏ 87490 Haldenwang ꞏ Germany ☎ +49 8374 585-0 | maha@maha.de | www.maha.de...
- Page 112 MAHA Maschinenbau Haldenwang GmbH & Co. KG, Hoyen 20, 87490 Haldenwang, Germany Haldenwang, 2021-11-30 Andreas Maier CE-Bevollmächtigter | Authorised CE Representative MAHA Maschinenbau Haldenwang GmbH & Co. KG ꞏ Hoyen 20 ꞏ 87490 Haldenwang ꞏ Germany ☎ +49 8374 585-0 | maha@maha.de | www.maha.de...
- Page 113 MAHA Maschinenbau Haldenwang GmbH & Co. KG, Hoyen 20, 87490 Haldenwang, Germany Haldenwang, 2021-11-30 Andreas Maier CE-Bevollmächtigter | Authorised CE Representative MAHA Maschinenbau Haldenwang GmbH & Co. KG ꞏ Hoyen 20 ꞏ 87490 Haldenwang ꞏ Germany ☎ +49 8374 585-0 | maha@maha.de | www.maha.de...
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