Pruebas y Ajustes 330d Sistema Hidarulico[1]

330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine(SEBP45... Page 1 of 4

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

Pruebas y Ajustes 330D and 336D Excavators and 330D Waste Handler Hydraulic System Número de medio -RENR9585-13

Fecha de publicación -01/06/2010

Fecha de actualización -24/06/2010

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Specifications SMCS - 5050

Illustration 1

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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)

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330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine(SEBP45... Page 2 of 4

(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 Specifications Relief Valve

Service Limit (2)

Torque for Locknut

35000 ± 500 kPa (5075 ± 73 psi)

33000 kPa (4790 psi) to 35500 kPa (5150 psi)

69 ± 10 N·m (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 N·m (37 ± 7 lb ft)

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

36000 kPa (5220 psi) to 40000 kPa (5800 psi)

New Rebuilt (1)

(A) Main relief valve

(B) Boom cylinder line (head end)

(C) Boom cylinder line (rod end) 37000 + 2000 - 500 kPa

35000 kPa (5075 psi) to

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330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine(SEBP45... Page 3 of 4

(D) Stick cylinder line (head end)

(E) Stick cylinder line (rod end)

(5360 + 290 - 73 psi)

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

36000 kPa (5220 psi) to 40000 kPa (5800 psi)

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

35000 kPa (5075 psi) to 39000 kPa (5660 psi)

31400 ± 1000 kPa (4550 ± 145 psi)

29400 kPa (4260 psi) to 32400 kPa (4700 psi)

117 ± 10 N·m (85 ± 7 lb ft)

37500 ± 1500 kPa (5439 ± 218 psi)

34500 kPa (5004 psi) to 39000 kPa (5656 psi)

92 ± 8 N·m (68 ± 6 lb ft)

(F) Bucket cylinder line (head end) (G) Bucket cylinder line (rod end) (H) Swing relief pressure (right) (I) Swing relief pressure (left)

39000 kPa (5660 psi)

20 ± 2 N·m (14 ± 1 lb ft)

(J) Left travel crossover relief valve (forward) (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 (1) (2)

4100 ± 200 kPa (595 ± 29 psi)

49 ± 5 N·m (36 ± 4 lb ft)

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. 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

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330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine(SEBP45... Page 4 of 4

Main valves Line relief valve Swing relief valve Travel crossover relief valve Pilot relief valve

14400 kPa (2100 psi) 11000 kPa (1600 psi) 6800 kPa (985 psi) 3050 kPa (440 psi) 620 kPa (90 psi)

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".

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

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

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