Buhler SDW 800/1000 Operating Instructions Manual

Three-roll mill

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Bühler AG

CH-9240 Uzwil/Switzerland

Phone +41 71 955 11 11

Fax

+41 71 955 33 79

www.buhlergroup.com

Operating Instructions

Three-roll Mill

SDW 800/1000

SDW 800/1000-Ex

Spare Parts Catalogue, see 80394

SDW_80357-1-en-0703

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Page 1 Bühler AG CH-9240 Uzwil/Switzerland Phone +41 71 955 11 11 +41 71 955 33 79 www.buhlergroup.com Operating Instructions Three-roll Mill SDW 800/1000 SDW 800/1000-Ex Spare Parts Catalogue, see 80394 SDW_80357-1-en-0703...
Page 3 If the machine is certified on the Nameplate with the appropriate ATEX designation for operation in the explosion-dangerous area, the information and instructions marked by are condition for the perpetuation of the ignition protection. Therefore they must be absolutely kept. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 5: Table Of Contents
Machine......................33 Control cabinet ....................33 2.4.3 Power rating ....................33 Ratings ......................33 Motor power ....................34 2.4.4 Roll cooling...................... 34 2.4.5 Hydraulic system..................... 34 2.4.6 Noise data ....................... 34 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 6 5.3.11 Adjusting of minimum roll nip (option) ............. 60 Inspection of functions....................61 5.4.1 Inspection of machine functions ..............62 Direction of rotation of the hydraulic pump motor ........... 62 Direction of rotation of the rolls................ 62 SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 7 Hopper plate maintenance ................86 7.3.2 Cleaning water filter ..................86 Spare and wear parts....................87 Disposal ........................87 After-sales service ..................88 Address for the after-sales service and the spare parts sale......88 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 9: Safety
The hydraulic pump remains in operation and must be switched off with the push button “Hydraulic pump ”. • Always wear protective glasses during operation and maintenance of the machine. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 10: In The Explosion-Dangerous Area
Ensure that the machine is correctly earthed again after maintenance works. (The equipotential bonding must not be broken through the removal of earth conductors, through painting on contact surfaces or pipe joints), see sect. 4.4.2 “Earthing”.) SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 11: Description
Specifications and restrictions to this are marked in these operating instructions by . Therefore they must be absolutely kept for safe operation in the permitted explosion-dangerous area. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 12: Use In Accordance With Intended Purpose
In the explosion-dangerous area the machine must only be used to process combustible products up to temperature class T3, see sect. 2.1 “Identification”. The control cabinet must not be located in the explosion-dangerous area. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 13: Design And Function
The rolls 1 and 2 are flexible and are pressed hydraulically against the roll 3. The roll 3 is fixed. The extend of the nip is dependent on the hydraulic roll contact pressure, roll speed and the properties of the product (e.g. viscosity). © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 14: Roll Positions
Scraper knife and apron are slightly detached from roll 3. The product runs from the product trough through the 1 nip, separated between rolls 1 and 2 and is directed back into the product trough. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 15 Fig. 2.7 Neutral position or to clean the rolls, see also sect. 6.6 “Cleaning”. All 3 rolls are released from each other. Scraper knife and apron are slightly detached from roll 3. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 16: Cambered Chilled-Iron Rolls
Too low pressure Correct pressure Too high pressure Fig. 2.8 Note: The cambered chilled-iron rolls are only suitable for operation in a narrow pressure range. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 18: Pump Unit
Relieves the hopper plate-contact pressure piston in operating mode “Loosen”. HV14 Throttle valve, to reduce the contact pressure speed of the upper passage on the cooling side. (→ The rolls approach each other in parallel.) SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 19: Options
Corresponding to pressure switch S271, connected in series. Y281 Solenoid valve: Fixes the safety bar in operating mode “Loosen”. Options Differential pressure valves: For the filling hydraulic system (option), also see sect. 2.3.12. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 20: Roll Drive
The rotational speeds of the rolls can be changed by varying the gear wheels and V-belt pulleys (4). The product is guided between roll 1 and roll 2 and taken off by the scraper knife (5) at roll 3. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 21: Roll Cooling
(12) Solenoid valve oil cooler Pressure controller (13) Straight-way valve Pressure gauge (14) Oil cooler (hydraulic oil tank) Throttle valve (15) Cooling water outlet, R2" Cooling pipe Fig. 2.11: Open flow-through cooling © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 22 The cooling water temperature is displayed with a digital display on the temperature regulator (10). Models certified for the explosion-dangerous area The temperature regulation takes place with a thermostat sensor. The cooling water temperature is displayed on the remote thermometer (11). SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 23: Open Flow-Through Cooling With Cooling Water Tank
Three-roll Mill Description Open flow-through cooling with cooling water tank SDW-10123 (...) = designation in case of explosion-protected design Fig. 2.12: Open flow-through cooling with cooling water tank © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 24 (10) if the main motor of the machine is running simultaneously. When all 3 solenoid valves (4) are closed the cooling water flows through the overflow valve (21) back into the cooling water tank (12). SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 25: Hydraulic Oil Cooling
If the temperature of the hydraulic oil is too high, the seals of the hydraulic system can spring a leak. The straight-way valve (13) must be opened for about 1 revolution of the handwheel. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 26: Product Trough
Hopper plates The hopper plates are pressed hydraulically laterally onto the roll collars. Fig. 2.15: Hopper plate Hopper plate designs: – Grey cast iron (standard) – Bronze (option) – Plastic (option) SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 27: Scraper
Width x Depth: 40 x 0.6 mm spring steel with ceramic blade (option) Apron designs: – Normal steel – Stainless steel – Outflow width SDW 800: 350 mm SDW 1000: 500 mm © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 28: 2.3.10 Safety Bar
A position switch ensures that the safety bar is present. With hopper plate With protection bar Without hopper plate, without protection bar Position switch Position switch not Position switch pressed pressed pressed SDV-10021 Fig. 2.18: Monitoring the safety bar SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 29: Level Monitoring (Option)
Models certified for the explosion-dangerous area The ultrasonic probe can be adjusted on the measurement transducer FMU 860 in the controller (without certification for explosion-dangerous areas). Also see sect. 5.3.6, Fig. 5.13. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 30: Filling Hydraulic System (Option)
Handwheel Position indicator Handle Spindle Headless screw Fig. 2.20 The nip is set on the handwheel (1) via spindle (4) (depending on execution with gear wheel conversion), also see sect. 6.4. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 31: Bucket Tilting Device (Option)
2.3.14 Bucket tilting device (option) The bucket tilting device is operated via a separate hydraulic system to avoid pressure variations in the roll contact pressure system. SDW-10135 Fig. 2.21: Hydraulic scheme bucket tilting device (option) © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 32: Loading Capacity
Close the cover hood carefully to avoid spark formation because of impacts. Height of the bucket: 900 mm Total weight with which the bucket tilting device may be loaded = weight of the bucket + weight of the product SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 33: Technical Data
Power rating Ratings Voltage: 3 x phase voltage Frequency: 50 / 60 Hz Control voltage: 115 / 230 VAC Control voltage: 24 VDC According to additional fitting (option), the dimensions can differ. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 34: Motor Power
Acoustic power level = 88 dB (A) (sound intensity based on ISO 9614) Measuring surface measure = 16 dB (A) Tab. 2.5 In the case of the option bucket tilting device SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 35: Operating Materials
NLGI class 2, with H-LP-additives (e.g. Mobilgrease HP222) Assembly paste: Molykote DX Threaded joints: Hemp for cooling system, Teflon tape for hydraulic system Measured with photometry. Measured with atom-absorbing spectrometry. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 37: Dimension Drawings
Description Dimension drawings 1910 1000 1000 2110 1150 Water-inlet, R¾“ Water-outlet, R2“ Control panel Product trough Apron Oil filler Oil outlet Electric connection Level monitoring (option) Fig. 2.23: SDW Three-roll mill © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 38: Transport
The bright machine parts are factory-protected with conservation agent which under the mentioned conditions has a life of maximum one year. If the storage exceeds this period of time, the conservation must be renewed. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 39: Suspension On The Crane
The angle of the ropes/chains may not exceed 60°. – Pay attention to an adequate rope quality. • When the machine is correctly positioned, remove the transport bolts. Close the tapped holes with supplied plastic caps. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 40: Installation
Block the installation area for unauthorised persons. • Secure the working environment (avoid stumbling obstacles etc.). • Allow for ample space around the machine to enable installation and adjustment work, see sect. 2.7 “Dimension drawings”. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 41: Installation Procedure
Align the machine and position it on the foundation. • Level the machine: With the spirit level, check the position of the upper roll. If necessary, correct with metal supports between the resting surface and the damping plates. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 42: Electrical Installation
See the separate connection diagram. Included in delivery. The connecting cables of the clamps of the cable boxes in the machine to the clamps in the control cabinet are not included in delivery. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 43: Earthing
The water must be able to flow out without any pressure. • After assembly, check the water pipes for leaks and flush them thoroughly (remove impurities). • Cooling water, see sect. 2.5.1. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 44: Start-Up
If the machine is equipped with a protective cover (option), it must be operated only with installed protective cover. CAUTION! In roll position “Grinding”, “Mixing” or when discharging the machine, do not allow the rolls to rotate dry, otherwise they will be damaged. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 45: Pre-Operational Inspections
The water quality corresponds to the requirements, see sect. 2.5.1 “Cooling water”. – The pointers of the cooling water thermometer point to room temperature. • Level control (option) and emergency shutdown are set correctly, see sect. 5.3.6. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 46: Settings
Set the pressure controller (3) to 0.5 ... 1 bar. • Set the reducer valve (2) in such a way that upon opening the upstream solenoid valve (1), the pressure at the pressure gauge (4) reduces by maximum 1 bar. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 47: Filling In Hydraulic Oil And Adjusting Operating Pressure
Before the first start-up, run the hydraulic system for about ½ h, to ensure the oil inflow. With the rolls at standstill, actuate the roll position lever HV1 several times to deaerate the hydraulic system. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 48: Aligning The Rolls
The roll edges of rolls 1 and 2 must be precisely aligned to 0.04 mm. Check using a straightedge. Straightedge Roll Roll Roll Fig. 5.3 Roll 3 Roll 2 Roll 1 Fig. 5.4 SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 49 If necessary, realign the rolls till they align exactly. Cooling side: Drive side: fixed bearing, Movable no axial bearing with bearing axial bearing clearance play, takes up the elongation of the rolls Fig. 5.6 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 50: Setting Counter-Pressure, Hopper Plate And Scraper Knife Contact Pressure
See Fig. 5.8 Fig. 5.7 Regulating valve hopper plate-contact pressure Pressure gauge hopper plate-contact pressure Regulating valve scraper counter-pressure Pressure gauge scraper counter-pressure Fig. 5.8: Adjustment of counter-pressure and hopper plate contact pressure SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 51: Inserting And Fixing The Scraper And Setting It
The edge of the scraper knife must not be damaged. Dress the blade carefully with a grinding stone. Scraper knife contact cylinder Scraper knife holder Lifting device Scraper knife dismantling device Machine knob Knurled nut Scraper knife Apron Fig. 5.10 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 52 → complete product acceptance Incorrect: too much pressure bends the scraper knife → incomplete product removal Correct: scraper knife correctly inserted (cut is visible) Incorrect: scraper knife incorrectly inserted Fig. 5.11 SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 53: Level Monitoring (Option)
2 s, so that the rolls do not rotate without product (dry run protection in case of shortage of product). The main motor can only be restarted, if product level (D) (= product level (B) + hysteresis) is reached. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 54: Certified For The Explosion-Dangerous Area
If the cursor is at the extreme right, pressing several times switches to “+”. Confirm input and save (Return). When the matrix field is changed without pressing “E”, the earlier value is retained. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 55 Press V and H simultaneously. Note: The measuring transducers can be synchronized at the synchronization connection to prevent interference by other machines in the proximity. See also separate documentation of the manufacturer and wiring diagram. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 56 Tab. 5.6 Sensor Block distance (0.30 m) V0H1 balancing “Empty” V0H2 balancing “Full” 100% Measurement range V2H7 V1H3 / R2 V1H2 / R2 V1H2 / R1 V1H3 / R1 Fig. 5.14 SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 57: Calibrating The Position Indicator (Option)
(1) to such an extent that both the pointers (4) overlap at “12 o’clock”. Important: The handwheel (1) must not rotate along as well. • Tighten the headless screw (3) firmly once again. • Carry out this procedure on all 4 handwheels. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 59: Tightening The V-Belts
• Adjust the speeds of the tilting functions. – Opening the cooling side door. – Adjust the speeds by means of the valves HV23, see sect. 2.3.14, Fig. 2.21 . © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 60: Adjusting Of Minimum Roll Nip (Option)
Reset the former roll contact pressure at the pressure reducing valves HV2 and HV3. Note: The roll nip adjustable by turning the hand wheel (15) can not be smaller than the minimum roll nip. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 61: Inspection Of Functions
” (16) In case of design with main motor with 2 rotational speeds: Push button (S292) “Main motor ” SLOW Push button (S293) “Main motor ” FAST Fig. 5.19: Control panel © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 62: Inspection Of Machine Functions
Switch on hydraulic pump motor: Press the push button “Hydraulic pump ” (7). • Press the emergency stop button (10). → The emergency stop button (10) must remain in the pressed position. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 63: Safety Bar
Press the push button “Main motor on” (8): → The main motor starts. • Switch off the main motor with emergency stop button (10). • Switch off hydraulic pump motor: Press the push button “Hydraulic pump ” (9). © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 64: Checking Eu Conformity
– The hydraulic unit is correctly filled with hydraulic oil, see sect. 2.5.2 and sect. 7.2. – The gear casing is correctly filled with oil, see sect. 2.5.3 and sect. 7.2. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 65 On the support cover on the drive side, there is a warning sign put up “When cleaning the rolls, insert the safety bar”. – The following warning sign is put on the cover on the drive side: © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 66: Operation
The side cover must be kept closed during operation. • If the machine is equipped with a protective cover (option), it must be operated only with installed protective cover. • Repair leaky pipes immediately. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 67 • With respect to your personal safety equipment, observe the applicable industrial safety regulations. • During operation of the machine and cleaning of the rolls, protective glasses must always be worn. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 68: Control Panel
Indicator lamp (H351) “Product level ” (16) In case of design with main motor with 2 rotational speeds: Push button (S292) “Main motor ” SLOW Push button (S293) “Main motor ” FAST Fig. 6.1 SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 69: Functions
” / “Tilting device ” STOP Switch off the automatic feeding. In the case of the bucket tilting device option, the solenoid valve (HV28), see Fig. 2.21, is actuated till the button is pressed. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 70: Operation
If necessary, use the regulating valves (3) and (4) to regulate the roll contact pressure. To do so, on the drive side, set a somewhat higher pressure (compensate gear wheel pressure). SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 71: Machine Turning Off
6.7 “Faults and troubleshooting”. – Only operate the machine when the protection devices are intact and the safety equipment is operational, see chap. 5. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 72: Roll Nip Setting (Option)
After operation with the nip setting, the position indicators (2) must be rotated back three revolutions in the counter-clockwise direction so that the pointers point to “9 o’clock”. – The nip setting is adjustable with the rolls pressed together. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 73: Instructions For Operation
Remove the remaining product or dilute it with processed product. Note: Accumulations of large particles suggest insufficient pre-mixing of the product. The product particles should be < 100 µm before processing in the machine. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 74: Process Parameters
More product will be transferred onto roll 3 if it is colder than roll 2. Note: The cambered chilled-iron rolls are only suitable for operation in a narrow contact pressure range, see sect. 2.3.3. Dependent on product. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 75: Cleaning
→ Cleaning paste is mixed with the product residue on the roll surface. • Shift the roll position lever (2) to the “Grinding” mode. → Cleaning paste passes through the machine. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 76 Cover the scraper knife (3) with the scraper knife disassembly device (5) and remove it • Remove the apron (4). Fig. 6.4 • Insert the safety bar (7) between roll 1 (8) and roll 2 (6), also see sect. 2.3.10 “Safety bar”. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 77: Cleaning The First Roll
DANGER OF GETTING CAUGHT! • Hold the cleaning cloth firmly with Keep away from the nip of your fist. Press on the roll 1 with the roll 1. downwards facing fist. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 78: Cleaning The Second And Third Roll
Do not clean the roll 3 with the apron mounted or with the scraper knife inserted! • After roll cleaning: – Remove the safety bar. – Switch off the hydraulic pump. – Put the cleaned hopper plates, aprons etc. back in the machine. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 79: Faults And Troubleshooting
Replace coil or complete valve, if necessary. Hydraulic pressure Level in the tank too low. Check oil level. If necessary, refill 2.5.2 varies oil. Hydraulic pump defective. Replace the hydraulic pump. 2.3.4 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 80 Lime or other deposits in the Clean rolls or get them overhauled. consumption rolls. Roll contact Faulty antifriction bearing Replace antifriction bearing. pressure “pulsating” causes vibration of the rolls or noisy running. Tab. 6.8 SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 81: Maintenance
Keep clean and do not remove or cover any warning and instruction signs. Replace any damaged warning and instruction signs with new ones. Do not remove or cover any designation numbers on electric wires. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 82 Remove any waste in accordance with the applicable regulations. Before operating the machine, replace protection and safety devices removed for maintenance, and check them for operation, see sect. 5.2 “Pre-operational inspections”. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 83: Maintenance And Lubrication Chart
CAUTION! Comply with maintenance intervals. Inadequate maintenance and lubrication can damage the machine. • After all inspection and maintenance work, check the safety functions, see sect. 5.4.2 . Fig. 7.1 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 84 Antifriction Re-lubricate. High-pressure 2.5.4 bearing (1) grease ISO VG 220 (e.g. Mobilgrease HP222) Roll 3 at 500 min ‫¹ ־‬ 3,0 g 1 stroke with grease gun → approx. 1.5 g SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 85 Replace if necessary. (e.g. Mobil DTE25) Housing toothed Oil change About 6 l gear oil 2.5.3 gearing (2) ISO VG 220 After 10000 Rolls Regrind. hours of operation or during revision Tab. 7.1 © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 86: Maintenance Work
The hopper plates can only be removed in case of roll position “Loosen” and the hydraulic pump running. 7.3.2 Cleaning water filter Fig. 7.3 • Remove water filter cartridge. Rinse thoroughly with water. Replace, if necessary. • Refit the water filter cartridge. SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...
Page 87: Spare And Wear Parts
• Dispose any special waste (harmful substances, etc.) in accordance with the applicable regulations. Note: Observe any regulations on environmental protection. The rolls must only be changed by Bühler AG personnel. © Copyright 2007 Bühler AG SDW 800/1000 (-Ex), 80357-1-en-0703...
Page 88: After-Sales Service
It is recommended to call personnel of Bühler AG for briefing, initial start-up, installation and maintenance of the machine. Address for the after-sales service and the spare parts sale Bühler AG Abt. EPCS CH-9240 Uzwil E-mail: customerservice@buhlergroup.com SDW 800/1000 (-Ex), 80357-1-en-0703 © Copyright 2007 Bühler AG...

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