Pruebas y Ajustes 330d Sistema Hidarulico[1]

Pruebas y Ajustes 330D and 336D Excavators and 330D Waste Handler Hydraulic System

Specifications SMCS - 5050

Cerrar SIS

Pantalla anterior

Producto: EXCAVATOR Modelo: 330D L EXCAVATOR MWP Configuracin: 330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine

Nmero de medio -RENR9585-13 Fecha de publicacin -01/06/2010 Fecha de actualizacin -24/06/2010

i03296452

Illustration 1 g00721434

Relief valve locations

(A) Main relief valve

(B) Boom cylinder line (head end)

(C) Boom cylinder line (rod end)

(D) Stick cylinder line (head end)

(E) Stick cylinder line (rod end)

Page 1 of 4330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine(SEBP45...

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(F) Bucket cylinder line (head end)

(G) Bucket cylinder line (rod end)

(H) Swing (right)

(I) Swing (left)

(J) Left travel crossover relief valve for forward travel (upper valve)

(K) Left travel crossover relief valve for reverse travel (lower valve)

(L) Right travel crossover relief valve for forward travel (upper valve)

(M) Right travel crossover relief valve for reverse travel (lower valve)

(N) Pilot relief valve

(O) Main control valve

(P) Pilot filter

(Q) Travel motor (right)

(R) Travel motor (left)

(S) Swing motor

Table 1

Relief Valve Specifications

Torque for Locknut New

Rebuilt (1) Service Limit (2)

(A) Main relief valve

35000 500 kPa (5075 73 psi)

33000 kPa (4790 psi) to

35500 kPa (5150 psi)

69 10 Nm (51 7 lb ft)

36000 500 kPa (5220 73 psi)

(Heavy Lift (if equipped))

34000 kPa (4930 psi) to

36500 kPa (5300 psi)

50 10 Nm (37 7 lb ft)

(B) Boom cylinder line (head end)

38000 + 2000 - 500 kPa (5510 + 290 - 73 psi)

36000 kPa (5220 psi) to

40000 kPa (5800 psi)

(C) Boom cylinder line (rod end)

37000 + 2000 - 500 kPa

35000 kPa (5075 psi) to



(D) Stick cylinder line (head end)

(5360 + 290 - 73 psi) 39000 kPa (5660 psi)

20 2 Nm (14 1 lb ft)

(E) Stick cylinder line (rod end)

38000 + 2000 - 500 kPa (5510 + 290 - 73 psi)

36000 kPa (5220 psi) to

40000 kPa (5800 psi)

(F) Bucket cylinder line (head end)

37000 + 2000 - 500 kPa (5360 + 290 - 73 psi)

35000 kPa (5075 psi) to

39000 kPa (5660 psi)

(G) Bucket cylinder line (rod end)

(H) Swing relief pressure (right)

31400 1000 kPa (4550 145 psi)

29400 kPa (4260 psi) to

32400 kPa (4700 psi)

117 10 Nm (85 7 lb ft) (I) Swing relief pressure

(left) (J) Left travel crossover relief valve (forward)

37500 1500 kPa (5439 218 psi)

34500 kPa (5004 psi) to

39000 kPa (5656 psi)

92 8 Nm (68 6 lb ft)

(K) Left travel crossover relief valve (reverse) (L) Right travel crossover relief valve (forward) (M) Right travel crossover relief valve (reverse)

(N) Pilot relief valve 4100 200 kPa (595 29 psi)

49 5 Nm (36 4 lb ft)

( 1 ) A New specification is the performance that can be expected for a new machine. A "Rebuild" specification is the performance that can be expected after rebuilding the components of a system.

( 2 ) Performance beyond "Service Limit" specifications is an indication of the following problems: improper adjustment, wear, damage of relief valves and damage of pumps.

Table 2

Required Tools

Part Number Description Qty 9U-7400 Multitach Tool Group 1

8T-0470 Thermometer group 1

Table 3

Relief Valves Pressure change With One Turn Of Adjustment Screw



Note: Pressure values in Table 3 are approximate values. Use a pressure gauge for adjustment.

Note: Normal operations of the engine and pumps are necessary for the pressure adjustments. If the results of the pressure adjustment are not correct, then the engine and the pump characteristic curve needs to be checked. Slow output flow from the pump is an indication of air in the hydraulic system. Make sure that no air is present in the hydraulic system. Refer to Testing and Adjusting, "Main Hydraulic Pump Air - Purge".

Main valves 14400 kPa (2100 psi)

Line relief valve 11000 kPa (1600 psi)

Swing relief valve 6800 kPa (985 psi)

Travel crossover relief valve 3050 kPa (440 psi)

Pilot relief valve 620 kPa (90 psi)

Copyright 1993 - 2012 Caterpillar Inc. Todos los derechos reservados. Red privada para licenciados del SIS.

Tue Mar 20 20:09:17 UTC-0430 2012



Pruebas y Ajustes 330d Sistema Hidarulico[1]

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