2.
Table of contents 3 1. General information, handling 6 1.1 o rganisation and u se of this r epair m anual .............................................................................6 1.2 s ervice .........................................................................................................
4 9. Tightening torques for screwed connections 58 10. Electrical system 59 10.1 f lywheel - d ynamo / g overnor ...............................................................................................59 10.2 f lywheel - d ynamo 12v / g overnor / g raph ..........................................
Table of contents 5 we congratulate you on your choice of a farymann engine and wish you much pleasure with this german quality product. These operating instructions are based on the latest state of technical development. In preparing them, every effort has been made to avoid errors. However, we acc...
General information, handling 6 1. General information, handling all farymann diesel engines are 4 stroke, direct injection diesel engines. They are built as single cylinder engines in vertical and horizontal cylinder configuration. The direct injection guarantees an outstanding level of efficiency,...
General information, handling 7 1.4 engine, model and type designation every engine can be unmistakably identified using the manufacturer’s nameplate. As well as the clearly defined 12-digit code number, this refers to the order number (sn) and the date of construction. This information must always ...
Safety instructionsata 8 1.5 safety instructions only use transport devices specified by the manufacturer, and only follow hoisting instructions specified by the manufacturer. When handling fuels, lubricants and other chemical substances, follow the safety regulations which apply to the product. Do ...
Safety instructions 9 1.5 safety instructions only operate ic engines in enclosed areas if there is adequate ventilation. Before you start the engine in an enclosed environment, make sure that there is sufficient ventilation. Ensure that the engine only slows down to full stop after 10 - 20 seconds!...
Technical data 10 2. Technical data 37e / 43e-engine 43f-engine engine type 37e 43e 43f design horizontal number of cylinders 1 bore 95 mm Ø stroke 100 mm cubic capacity (piston displacement) 708 cm3 direction of rotation (looking at power take- off side) anti clockwise max. Power f (din 70020) 9,1 ...
Technical data 11 2.1 construction data, consumptions and pressures technical data table 1 engine type 37e 43e 43f construction data dimen- sion system * four stroke combustion proce- dure * direct injection cooling system * air-cooled design / configuration * 1-cylinder / horizontal bore (mm) 95 st...
Technical data 12 2.1 construction data, consumptions and pressures technical data table 2 engine type 37e 43e 43f adjustment data valves inlet opens btdc * 38°-42° = 103 - 114 mm 38°-42° = 103 - 114 mm 40°-55° = 108 - 149 mm exhaust closes atdc * 50°-55° = 135 - 148 mm 50°-55° = 135 - 148 mm 55°-60...
Technical data 13 2.2 output, torque, consumption 37e leistung / output / puissance / potencia 43e leistung / output / puissance / potencia drehmoment / torque / couple / par drehmoment / torque / couple / par verbrauch / consumption / consommation / consumo verbrauch / consumption / consommation / ...
Technical data 14 2.2 output, torque, consumption 43f leistung / output / puissance / potencia the values shown are related to the optimal load setting at the correspond- ing nominal engine speed. Drehmoment / torque / couple / par m max = 40,6 nm at rpms of 2300 min -1 . Verbrauch / consumption / c...
Technical data 15 2.3 screws - tightening torques, sealing and adhesive materials technical data table 1 engine type 37e 43e 43f tightening torques cylinder head torque / wrench width (nm) (mm) 52 - 56 / 17 52 - 56 / 17 52 - 56 / 17 rocker bracket torque / wrench width (nm) (mm) 42 - 46 / 17 42 - 46...
Special tools 16 3. Tools part no. Description use 748.115.6 fuel line clamp to clamp fuel supply lines 748.154.2 hexagonal socket wrench, 46 mm for flywheel nuts 748.128.4 drive wrench for use with socket wrench, 748.154.2 748.108.5 special screw driver to adjust governor spring nuts 748.132.6 cran...
Special tools 17 748.120.4 bearing driver to press the crankshaft bearing bushes in and out 748.121.4 bearing driver to press the camshaft in and out 748.124.4 bearing driver to press out the crank- shaft roller bearing 748.173.2 oil filter wrench to remove the full flow oil filter 748.172.4 bearing...
Special tools 18 748.131.5 valve spring lifter to remove and fit the valve springs.
Technical description 19 presentation : 43e – engine 4. Technical description diesel engine models 37e / 43e/ 43f are horizontal, air-cooled, single-cylinder, four-stroke diesel engines with direct injection. The engines have oil pressure forced lubrication. The fuel injection pump and the valves ar...
Technical description 20 4.1 applications diesel engine models 37e / 43e / 43f are suitable for the following applications: − construction machinery − power-generating sets − agricultural machinery − water pumps − compressors − fork lift drives, etc. Special applications auxiliary power units, milit...
Dismantling / reassembly of the basic engine 21 5. Dismantling and assembly procedures on the basic engine 5.1 basic requirements − the aim of this repair manual is to pro- vide help with carrying out repairs to the engine. The requirements for this are as follows: − trained specialist staff (of at ...
Dismantling / reassembly of the basic engine 22 5.2 intake manifold (on 37e / 43e only) airfilter-assy 37e / 43e 1. Filter base 2. Cover with preliminary filter 3. Strainer 4. Fitting hex-nut 5. Centering ring airfilter-assy-anbau 43f 1. Filter-base 2. Cover 3. Strainer 4. Fastening strainer-cover i...
Dismantling / reassembly of the basic engine 23 5.3 valve cover with oil return line 37e / 43e – engines : drain the engine oil. − before dismantling, seal the oil return line (1) using clamp "748.115.6". − the pvc sealing washer (2) can be used several times. − generally renew the valve cover seal ...
Dismantling / reassembly of the basic engine 24 5.4 rocker mechanism, valve control 5.4.1 37e / 43e - assy − completely dismantle the rocker bracket. − 43f see page 43 no. 3.12.1 − when assembling, it is absolutely essen- tial to insert the steel shim (1). − centre the rocker bracket. − carry out th...
Dismantling / reassembly of the basic engine 25 5.4.2 cylinderhead assy 43f – engine 1. Cylinderhead 2. Intake valve 3. Exhaust valve 4. Valve guide, exhaust 5. Valve spring, exhaust 6. Rocker arm, exhaust 7. Valve guide, intake 8. Valve spring, intake 9. Rocker arm, intake 10. Rocker shaft.
Dismantling / reassembly of the basic engine 26 5.5 injection system attention pressure line: − when loosening the pressure line, use wrench sw22 to hold the delivery valve. Attention injection nozzle − always remove the nozzle seal from the cylinder head seat and renew it. Attention: assembly posit...
Dismantling / reassembly of the basic engine 27 injection system attention injection pump: − defined seals are always used when fitting the injection pump. − the total thickness of the pump shims is imprinted on the surface of the crankcase, next to the injection pump. − it is absolutely essential t...
Dismantling / reassembly of the basic engine 28 5.6 oil filter, oil filter cover, oil pressure relief valve attention assembly: − generally renew the seal (1) and the o- ring seal (2). − before fitting the cover, secure the o-ring seal by greasing it so that it sticks. − secure the oil filter cover ...
Dismantling / reassembly of the basic engine 29 5.7 cylinder head 37e / 43e assembly: − generally use a new cylinder head seal. − use grease to fix the cylinder head seal in the head slot. Attention check the valves for: − wear and tear on the valve guides − the condition of the stem seals − leakpro...
Dismantling / reassembly of the basic engine 30 5.8 piston, cylinder − if the unit shows any traces of corrosion or cracks, the piston and the cylinder must be exchanged. See the table for wear measurements on the individual components. − if the limit values are exceeded: exchange the components. − ...
Dismantling / reassembly of the basic engine 31 5.8.1 piston, cylinder assembly − it is absolutely essential to use a piston retaining strap for the assembly. There is a marking on the side of the piston which points towards the side of the flywheel. Original 37e / 43e pistons always have valve pock...
Dismantling / reassembly of the basic engine 32 5.10 camshaft with automatic decompression − the unit comprising the camshaft and the flanged bearing can only be exchanged complete. − it is not possible to carry out repairs on the decompression unit. Assembly: − position the flywheel on the tdc mark...
Dismantling / reassembly of the basic engine 33 5.11 lubricating oil pump 37e / 43e wwhen exchanging the lubricating oil pump, no. E724.036.8 or no. 724.040.8, the as- sembly must be carried out as follows: 1. Dismantle the intermediate gear wheel (3). 2. Caution: remember the shims for end float. 3...
Dismantling / reassembly of the basic engine 34 5.12 lubricating oil pump 43e, conversion kit the teeth of gearwheels (1) and (2) may experience premature wear if the engines are used under difficult operating conditions. For this reason, the gearwheel (1) mounted on one side with support bracket (3...
Dismantling / reassembly of the basic engine 35 5.13 lubricating oil pump 43f attention 1 screw, m6 x 25 2 spring lock washer 3 cover 4 housing 5 cover 6 gear wheel, z=24 / m=1.75 7 pump shaft 8 gear wheel, z=07 / m=3.0 (2x) 9 bolt (3x) 10 locking plate for dates of construction from 6/1996 onwards,...
Dismantling / reassembly of the basic engine 36 5.14 regulation mechanism preliminary work: − dismantle the injection pump. − dismantle the flanged bearing with the camshaft. − on the injection pump flange, unscrew the rear stay bolt (1) until the transverse lever (2) is released. − remove the stop ...
Dismantling / reassembly of the basic engine 37 5.15 regulation mechanism assembly: attention: insert the governor needle, and secure it with grease. Pre-assemble the eccentric shaft (9) with the requisite parts. Attention: for stationary regulation, the torsion spring can be clamped to the rest pla...
Measurement tables, wearing parts 38 6. Measurement tables - wearing parts.
Measurement tables, wearing parts 39.
Measurement tables, wearing parts 40
Measurement tables, wearing parts 41 comparison of 43e / 43f - camshafts.
Measurement tables, wearing parts 42.
Measurement tables, wearing parts 43.
Measurement tables, wearing parts 44.
Measurement tables, wearing parts 45.
Measurement tables, wearing parts 46.
Measurement tables, wearing parts 47.
Measurement tables, wearing parts 48.
Measurement tables, wearing parts 49.
Measurement tables, wearing parts 50
Special components 51 7. Special components 7.1.1 centrifugal speed governor 1 2 3 4 5 6 7 8 9 governor body governor spring - middle speed range in the case of a variable-speed governor spacer (instead of item 2 for end gover- nor) governor pin spring bridge guide bush governor spring: full load re...
Special components 52 7.2 crankshaft, flywheel attention caution − if the flywheel is removed from the complete engine, the acceleration lever must previously be set to ‘full load’. Dismantling: − use the drive wrench (special tool 748.128.4 and 748.154.2) to loosen the flywheel nut. Do not screw of...
Adjustments, settings 53 8. Adjustments, settings 8.1 valve setting the valve clearance for both valves is 0.1 mm (cold). The valve clearance must be checked for the first time after 20 operating hours and thereafter every 300 operating hours and, if necessary, is to be adjusted as follows: the clea...
Adjustments, settings 54 8.1.1 valve setting procedure exhaust valve: − turn crankshaft slowly with the starting handle until the end of the compression stroke. In this position the exhaust valve is closed (max. Clearance between rocker and valve) and the top dead centre mark of the flywheel points ...
Adjustments, settings 55 8.2 speed adjustment / automatic increased start quantity 8.2.1 lever system setting − set the acceleration lever to the “full load" position. − remove the setscrew (3) from the lever (1). − carefully unhook the spring (4) from the lever (1). − spread the governor weights (7...
Adjustments, settings 56 8.2.2 automatic enriched starting mixture (esm) setting − set the acceleration lever to the "full load" position. − screw the setscrew (3) into the lever (1) until contact is made with the flanged bolt (6). − secure the flanged bolt with the nut (9). (see illustration 4.1.1)...
Adjustments, settings 57 8.4 injection pump - setting values - end of delivery flywheel end of delivery (mm) before tdc - tolerance + - 2mm engine type part num- ber dia- meter at engine speed (min -1 ) mm 1500 1800 2000 2500 2800 3000 3300 3600 738.265.4 738.293.4 310 21 24 26 32 35 37 * * 738.307....
Adjustments, settings 58 9. Tightening torques for screwed connections 37e/43e 43f wrench width tightening torque (nm) wrench width tightening torque (nm) (mm) min max (mm) min max rocker bracket 17 42 46 * * * cylinder head nuts 17 52 56 15 52 56 connecting rod nuts 17 58 62 17 58 62 valve cover nu...
Electrical system 59 10. Electrical system 10.1 flywheel - dynamo / governor operation: the permanent magnets in the magnet holder (1) on the fly- wheel side induce an alternating voltage in the coils of the stator (2): this voltage is proportional to speed (rpms). The alternat- ing voltage is recti...
Electrical system 60 operating conditions: − permissible operating temperatures: -20 to 70°c (measured on the governor surface) − an intact earth connection must exist between the governor and the engine, and also between the governor and directly attached external construction (no painted or enam- ...
Electrical system 61 10.2 flywheel - dynamo 12v / governor / graph idling voltage without governor graph a 10 15 20 25 30 35 u~ [v] 500 1000 1500 2000 2500 3000 3500 n [1/min] charging current graph b 0 4 8 12 16 20 i [a] 500 1000 1500 2000 2500 3000 3500 4000 n [1/min].
Electrical system 62 10.3 wiring diagrams.
Electrical system 63.
Electrical system 64.
Electrical system 65.
Electrical system 66.
Electrical system 67.
Troubleshooting 68 11. Troubleshooting this section aims to suggest possible causes and remedies for faults. Please note that this list can never be complete. Whenever there is a fault, the guiding principle should be: “think before you act”. 11.1 engine will not start reason causes remedy if the in...
Troubleshooting 69 11.2 engine starts but fires intermittently or dies poor fuel supply fuel filter choked. Fuel line blocked. Leaking fuel lines. Water in fuel. Faulty injector nozzle. Faulty injector pump. Renew filter. Check lines. Check lines / tighten connections. Drain fuel, fill with clean di...
Troubleshooting 70 11.3 poor engine performance and/or black smoke dirty engine dirty air filter. Excessive oil carbon deposits on piston and cylinder head. Clean / renew filter. Decoke components / change vent valve. General engine condition worn piston rings. Worn piston and cylinder. Worn bearing...
Troubleshooting 71 11.4 imperfect operating behaviour engine stops suddenly fuel pipe broken. Seized piston. Seized crankshaft bearing. Renew pipe. Renew piston and cylinder. Repair / renew crankshaft and bearings. Blue smoke from engine oil level in oil bath air filter too high. Faulty vent valve i...
Notes 72.
Notes 73.