3-48
SHB 28Z3 EN – Edition 2.0 * 28z3s314.fm
Maintenance
3.16 Pilot valve
Caution!
In order to protect the control spools in the pilot valves from damage due to dirt
in the oil, check the pilot control filter every 1000 s/h and clean it if necessary!
Check the pilot valve as follows:
☞
Park the machine on level ground
☞
Retract the bucket and boom rams, lower the boom and the bucket teeth to the ground
☞
Lower the stabiliser blade to the ground
☞
Set the boom straight
☞
Stop the engine
☞
Move the control levers in all directions repeatedly
☞
Switch off ignition and remove the ignition key
☞
Fold up the control lever base
☞
Let the engine cool down
☞
Slowly open the breather filter
➥
Release the pressure
☞
Install the vacuum pump
☞
Switch on the pump before routing the hoses
☞
Remove the joystick
☞
Remove the pilot control hose from the joystick
☞
Remove pilot control filter
B
from the joystick
☞
Check pilot control filter screen
C
for dirt and clean it if necessary. Replace it by a new
filter if it is damaged!
Assemble in the reverse order.
Fig. 56: Pilot valve
C
B
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...
Страница 174: ......
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...
Страница 199: ...SHB 28Z3 EN Edition 2 0 28z3s612 fm 6 25 Electricalsystem...
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...
Страница 230: ...7 30 SHB 28Z3 EN Edition 2 0 28z3s710 fm Options...
Страница 231: ...PowerTilt PTS06...