4-14
SHB 28Z3 EN – Edition 2.0 * 28z3s410.fm
Engine
Notice!
If a new or newly calibrated injection pump is fitted, at least 0.15 – 0.20 l (0.04 –
0.05 gal) of new, clean engine oil must be filled through the top rear plug of the
governor
☞
Bleeding the fuel system
☞
Start the engine and check for any fuel or engine oil leaks
4.10 Measuring and adjusting the engine speed
Measuring the engine speed
The engine speed can be quickly and simply determined with a tachometer
☞
Measurement on the crankshaft disc or on the ring gear
☞
A manual tachometer
Fig. 18
can be obtained from a Wacker Neuson workshop
Notice!
The maximum engine speed is set and sealed by the manufacturer without the
pump and may not be modified!
Adjusting engine speed
Only the idling speed can be adjusted
☞
Adjust engine speed without load!
☞
Run the diesel engine until it reaches operating temperature
☞
Check idling speed and maximum engine speed with all attachment functions in neutral
➥
Idling speed: 1300 +/- 25 rpm
➥
Max. engine speed: 2375 +/- 25 rpm
☞
In the event of deviation, correct the idling speed by means of the idling speed set
screw
A
4.11 Compression
☞
Clean the engine
☞
Run the diesel engine until it reaches operating temperature
☞
Remove the injection lines and the injection nozzles
☞
Set the injection pump to zero delivery
➥
Remove the connector for the cutoff solenoid
☞
Turn the engine before attaching the compression gauge
➥
The remaining fuel is ejected
☞
Attach the compression gauge to the respective cylinder with a sealing ring
☞
Turn the diesel engine with the starter and read off the pressure on the pressure gauge,
repeat until the reading is stable
➥
Specified value:
34.3 +/- 1 bar (498 psi +/- 15) at 250 rpm
➥
Threshold value:
27.5 +/- 1 bar (399 psi +/- 15) at 250 rpm
Fig. 18: Adjusting engine speed
A
Fig. 19: Manual tachometer
Fig. 20: Compression
Содержание 28Z3
Страница 1: ...Service Manual Track excavator Machine model 28Z3 Edition 2 0 Language en Article number 1000178347...
Страница 10: ...I 8 SHB 28Z3 EN Edition 2 0 28Z3s20IVZ fm...
Страница 11: ...Operation...
Страница 27: ...Specifications...
Страница 46: ...2 20 SHB 28Z3 EN Edition 2 0 28z3s210 fm Specifications...
Страница 47: ...Maintenance...
Страница 113: ...Engine...
Страница 115: ...SHB 28Z3 EN Edition 2 0 28z3s410 fm 4 3 Engine Alternator Tightening bracket Starter V belt Valve cover Exhaust manifold...
Страница 132: ...4 20 SHB 28Z3 EN Edition 2 0 28z3s410 fm Engine...
Страница 133: ...Hydraulic system...
Страница 169: ...bersicht der Hydraulikpl...
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Страница 175: ...Electrical system...
Страница 184: ...6 10 SHB 28Z3 EN Edition 2 0 28z3s610 fm Electrical system...
Страница 185: ...Die Stromlaufpl ne und K Optionen...
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Страница 189: ...SHB 28Z3 EN Edition 2 0 28z3s612 fm 6 15 Electricalsystem Electrical sys tem Wiring harnesses overview...
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Страница 200: ...6 26 SHB 28Z3 EN Edition 2 0 28z3s612 fm Electrical system...
Страница 201: ...Options...
Страница 204: ...7 4 SHB 28Z3 EN Edition 2 0 28z3s710 fm Options Installation...
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Страница 231: ...PowerTilt PTS06...