VOLVO EC240 LR Excavator Service and Repair Manual

2 piece boom and cylinder, description Figure 1 2nd cylinder Unit EC210 EC240 A mm (in) 1680 (66.1) 1750 (68.9) B mm (in) 2750 (108.3) 2980 (117.3) Weight kg (lb) 246 (542.3) 267 (588.6) Figure 2 1st boom Unit EC210 EC240 A mm (in) 2870 ±3 (113 ±0.1) 3050 ±3 (120.1 ±0.1) B mm (in) 2425 (95.5) 2611.8 (102.8) Weight kg (lb) 770 (1697.5) 943 (2079) Figure 3 2nd boom Unit EC210 EC240 A mm (in) 2800 ±3 (110.3 ±0.1) 3000 ±3 (118.1 ±0.1) B mm (in) 842.7 (33.2) 787.4 (31) Weight kg (lb) 785 (1730.6) 920 (2028.2)

2 piece boom, description Figure 1 2 piece boom, structure (1)

Figure 2 2 piece boom, structure (2) 1 Boom assembly 15 Pin 29 Plain washer 2 Arm assembly 16 Pin 30 Plain washer 3 Bucket assembly 17 Pin 31 Cord ring 4 Connecting rod 18 Pin 32 Shim 5 Yoke left 19 Plate 33 Shim 6 Yoke right 20 Lock pin 34 Shim 7 Pin 21 Cover 35 Shim 8 Pin 22 Bushing 36 Shim 9 Pin 23 Screw 37 Shim 10 Pin 24 Screw 38 Screw 11 Pin 25 Screw 39 Spring washer 12 Pin 26 Screw 40 Plug 13 Pin 27 Nut 41 Grease nipple 14 Pin 28 Spring washer Gap and shims, EC210 series Gap (mm) Necessary for max. gap Position Min. Max. Shim part No. ( 1t ) Quantity Shim part No. ( 0.5t ) Quantity

Gap1 + 0.25 + 3.5 1173 – 00200 3 – – Gap2 + 1.0 + 2.5 1173 – 00180 1 1173 – 00190 1 Gap3 + 1.0 + 4.0 1173 – 00180 3 – – Gap4 + 0.2 + 0.5 – – – – Gap5 0.0 + 1.0 – – – – Gap6 + 1.0 + 2.5 1173 – 00180 1 1173 – 00190 1 Gap7 0.0 + 1.0 – – – – Gap8 0.0 + 2.5 – 2 – – Gap9 + 0.5 + 2.5 1173 – 01210 1 1173 – 01330 1 Gap10 + 0.5 + 2.5 1173 – 01210 1 Gap11 + 0.5 + 2.5 1173 – 00180 1 1173 – 00190 1 Gap12 + 0.5 + 2.5 1173 – 00180 1 1173 – 00190 1 Gap13 + 0.5 + 2.5 1173 – 00180 1 1173 – 00190 1 Gap14 + 0.2 + 0.5 – – – – Gap and shims, EC240 series Gap (mm) Necessary for max. gap Position Min. Max. Shim part No. ( 1t ) Quantity Shim part No. ( 0.5t ) Quantity Gap1 + 0.25 + 3.5 1173 – 00420 3 1173 – 03680 1 Gap2 + 1.0 + 2.5 1173 – 01630 2 1173 – 01390 1 Gap3 + 1.0 + 4.0 1173 – 01630 3 – – Gap4 + 0.2 + 0.5 – – – – Gap5 +2.0 + 3.0 1173 – 00180 2 1173 – 00190 1 Gap6 + 1.0 + 2.5 1173 – 01630 2 1173 – 01390 1 Gap7 0.0 + 1.0 – – – – Gap8 0.0 + 2.5 – – – – Gap9 + 0.5 + 2.5 1173 – 03460 2 1173 – 03470 1 Gap10 + 0.5 + 2.5 1173 – 03460 2 1173 – 03470 1 Gap11 + 0.5 + 2.5 1173 – 03460 2 1173 – 03470 1 Gap12 + 0.5 + 2.5 1173 – 03630 2 1173 – 03640 1 Gap13 + 0.5 + 2.5 1173 – 03630 2 1173 – 03640 1 Gap14 + 0.15 + 0.5 – – – – Initial lubrication table, EC210 series (unit : cc) Position Initial grease amount Position Initial grease amount Position Initial grease amount Gr1 38 Gr7 85 Gr13 12 × 2 Gr2 15 × 2 Gr8 92 Gr14 12 × 2 Gr3 60 × 2 Gr9 (Left) 55 / (Right) 90 Gr15 810 Gr4 80 × 2 Gr10 70 Gr16 1895 Gr5 92 Gr11 45 Gr6 112 Gr12 12 Initial lubrication table, EC240 series (unit : cc) Position Initial grease amount Position Initial grease amount Position Initial grease amount Gr1 13 Gr7 14 Gr13 13 × 2 Gr2 16 × 2 Gr8 18 Gr14 13 × 2 Gr3 65 × 2 Gr9 (Left) 60 / (Right) 95 Gr15 870 Gr4 150 × 2 Gr10 75 Gr16 2350 Gr5 18 Gr11 50 Gr6 13 Gr12 13

NOTE! Grease hose / bearing inner space included. Hydraulic line connections Figure 3 2 piece boom, piping (1)

Figure 4 2 piece boom, piping (2)

Figure 5 2 piece boom, piping (3) 1 O-ring 57 Block 2 Screw 58 Clamp 3 O-ring 59 Plate bend 4 O-ring 60 Plate bend 5 Pipe weld assembly 61 Hose assembly 6 Pipe weld assembly 62 Pipe weld assembly 7 Clamp 63 Pipe weld assembly 8 Screw 64 Hose assembly 9 Spring washer 65 Hose assembly 10 Screw 66 Clamp 11 Pipe weld assembly 67 Screw

12 Pipe weld assembly 68 Spring washer 13 Pipe weld assembly 69 Pipe weld assembly 14 Screw 70 Screw 15 Pipe weld assembly 71 Spring washer 16 Pipe weld assembly 72 O-ring 17 Spring washer 73 Flange split 18 Hose assembly 74 Pipe weld assembly 19 Hose assembly 75 Screw 20 O-ring 76 Con filter 21 Flange split 77 Connector 22 Flange split 78 Grommet 23 Screw 79 Lock-pedal 24 Screw 80 Plate 25 Plate 81 Screw 26 Plate 82 Nut 27 Screw 83 Remote control valve (pedal) 28 Clamp 84 Screw 29 Screw 85 Adapter 30 Clamp 86 Tee 31 Pipe weld assembly 87 Screw 32 Bar 88 Block 33 Clamp 89 Connector 40 Valve 90 Ball steel 41 Screw 91 Pilot valve (servo valve 2) 42 O-ring 92 Tee 43 Screw 93 Hose assembly (to main control valve “a”) 44 Connector 94 Hose assembly (to main control valve “Px2”) 45 O-ring 95 Hose assembly 46 O-ring 96 Screw 47 Elbow 90° 97 Spring washer 48 Elbow 90° 98 Plate 49 O-ring 99 Tee 50 Connector 100 Tee 51 Hose assembly 101 Tee 52 Hose assembly (to 2boom valve pi) 102 Hose–93 (to servo hydraulic valve 2 “Pi”) 53 Clamp (to 2nd boom cylinder valve C) 103 Elbow 90°-48 (to pedal “1”) 54 O-ring 104 Elbow 90°-48 (to main control valve “Pg1”) 55 Screw 105 Elbow 90°-48 (to pedal “2”) 56 Spring washer 106 Connector-50 (to servo hydraulic valve 2 “Pi”) Port connection Component Port Description Port 1 a Pedal 2nd boom cylinder valve 2 b P P5 Block (1) T T5 P Solenoid (2) P1 Servo hydraulic valve (2) A Main control valve Px2 2nd boom cylinder valve C Pi Main control valve a T Tank T1

Main control valve Pg1 2nd boom cylinder valve Pi

2 piece boom, valve description Figure 1 2 piece boom, valve structure 1 Shuttle valve 7 Cover 2 Check valve 8 Housing 3 Boom holding check valve 9 Poppet B 4 Cover 10 Poppet A 5 Spool 11 Poppet D 6 Relief valve 12 Check valve C Spool in neutral position NOTE! pi (servo hydraulic signal ) : OFF The position of piston A and poppet B become as shown in the following figure, and passage (5) and (6) will be isolated by poppet B. As chamber (1) is connected to chamber (2) through orifice (4), pressure Pc is obtained. As poppet D is closed because section area d1 > d2, chamber (2) and (3) are completely isolated.

VOLVO EC240 LR Excavator Service and Repair Manual

You're Reading a Preview

Recently Viewed