Atlas Copco LH 11 Manual Download Page 33

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LH 11, 18, 19 E, 22, 23 E, 27, 28 E, 39, 40 E

No. 3392 5143 01

2008-02-29

Overhauling instructions

It should look like this

Check that the latch is moveable and that the

spring and pin lock it in two positions

Summary of Contents for LH 11

Page 1: ...Overhauling instructions Handheld hydraulic breakers 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 11 18 19 E 22 23 E 27 28 E 39 40 E LH...

Page 2: ......

Page 3: ...LH 11 18 19 E 22 23 E 27 28 E 39 40 E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Contents Contents English 4...

Page 4: ...que settings 6 Special tools for repair 6 Disassembly 7 Main components 7 Nose part 10 Valve housing 11 Trigger valve 12 Accumulator 13 Cylinder 15 E handle 16 Assembly 19 Valve housing LH 11 LH 19 E...

Page 5: ...ained persons may operate or maintain the breakers Use only authorized parts Any damage or malfunction caused by unauthorized parts will not be covered by the Warranty or Product Liability For major s...

Page 6: ...ven when there is no hydraulic pressure to the breaker Attempting to dismantle the accumulator without first releasing the pressure can cause personal injury or death The nitrogen gas pressure N2 must...

Page 7: ...92 5143 01 2008 02 29 Overhauling instructions Disassembly Main components 1 Mount the breaker in a vice 2 Loosen the nose part a torque wrench can also be used 3 Dismount the nose part 4 Remount the...

Page 8: ...ion Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 7 Remove the screws 8 Remove the handle from the accumulator 9 Loosen the four screws on the accumulator 10 Remove the accumulator 11 R...

Page 9: ...E 22 23 E 27 28 E 39 40 E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 13 Remove the valve housing from the cylinder 14 Remove the striking piston from t...

Page 10: ...Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions Nose part 1 Mount the nose part in a vice 2 Hammer out the two roll pins and remove the latch 3 Remove the lock pin and the sp...

Page 11: ...E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions Valve housing 1 Mount the valve housing in a vice 2 Loosen and remove the P guide socket 3 Loosen and remov...

Page 12: ...Overhauling instructions Trigger valve 1 Remove the packing gland from the trigger 2 Remove the O ring and the seal from the packing gland 3 Remove the trigger spool from the trigger rod 4 Remove the...

Page 13: ...ntle the accumulator without first releasing the pressure can cause personal injury or death The nitrogen gas pressure N2 must be released before carrying out further dismantling This procedure must b...

Page 14: ...8 19 E 22 23 E 27 28 E 39 40 E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 6 Remove the accumulator cover 7 Remove the diaphragm 8 Check the diaphragm fo...

Page 15: ...2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions Cylinder 1 Mount the cylinder in a vice 2 Remove the locking ring 3 Remove the seal 4 Remove the locking ring...

Page 16: ...ruction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions E handle 1 E handle without top cover 2 Puncture the rubber handles 3 Remove the rubber handles with compressed air while pulling t...

Page 17: ...43 01 2008 02 29 Overhauling instructions 6 Hammer out the left and right latch pin with a punch Remove and replace the trigger pawl if necessary 7 Remove the four springs 8 Hammer out the two roll pi...

Page 18: ...008 02 29 Overhauling instructions 11 Remove the eight nylon guides from the frame Replace and grease the nylon guides when assembling 12 Main parts of the E handle Note The old E handle with damping...

Page 19: ...43 01 2008 02 29 Overhauling instructions Assembly Valve housing LH 11 LH 19 E 1 Parts to be used 2 P and T location written on housing 3 Mount the O rings at both the T and the P side 4 P and T guide...

Page 20: ...Overhauling instructions 7 Incorrect mounting of the auxiliary spool 8 Oil the guide sockets 9 Apply Loctite or similar to the guide socket thread 10 Mount the P guide socket at the P side 11 Mount t...

Page 21: ...27 28 E 39 40 E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 13 Tighten the guide sockets with the torque wrench 14 Check the movement of the spool by sha...

Page 22: ...ction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions Valve housing new type LH 22 LH 40 E 1 Parts to be used 2 P and T location written on housing 3 P and T guide sockets 4 Mount the O r...

Page 23: ...auling instructions 6 Apply Loctite or similar to the guide socket thread 7 Mount the spool at the T side notice the milling 8 Apply Loctite or similar to the spool thread 9 Tighten the guide sockets...

Page 24: ...B No 3392 5143 01 2008 02 29 Overhauling instructions Cylinder 1 Parts to be used 2 Mount the seal green 3 Mount the back up washer and the locking ring 4 Mount the seal on a punch see Special tools f...

Page 25: ...uling instructions Accumulator 1 Parts to be used 2 Mount the diaphragm 3 Oil the diaphragm where the cover seals on the diaphragm 4 Grease the accumulator cover with copper grease 5 Mount the accumul...

Page 26: ...on Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 7 Mount the charging screw and the seal ring 8 Charge the accumulator with Nitrogen gas by means of filling device part number 3371 8010...

Page 27: ...3392 5143 01 2008 02 29 Overhauling instructions Main components 1 Oil the seals in the cylinder 2 Mount the striking piston in the cylinder 3 Grease the O ring grooves on the cylinder 4 Mount the O...

Page 28: ...ons 7 Mount the washers and the screws in the valve housing using Loctite or similar 8 Tighten the screws in the valve housing 9 Check the movement of the striking piston in the valve housing 10 Check...

Page 29: ...ols AB No 3392 5143 01 2008 02 29 Overhauling instructions 13 Mount the trigger valve 14 Apply Loctite or similar to the valve housing threads 15 Mount the accumulator 16 Tighten the screws on the acc...

Page 30: ...30 LH 11 18 19 E 22 23 E 27 28 E 39 40 E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 19 Mount the screws on the nose part and tighten them...

Page 31: ...ctions Mounting of bushing in nose part 1 Mount the nose part in a hydraulic press designed for min 10 t 2 Mount the bushing in a suitable punch 3 Place the nose part 4 Apply Loctite or similar to the...

Page 32: ...ng of latch in nose part 1 Grease the lock pin and the spring with copper grease 2 Mount the lock pin and the spring in the nose part 3 Place the latch 4 Place the nose part on an anvil 5 Hammer the b...

Page 33: ...E 27 28 E 39 40 E 2008 Atlas Copco Construction Tools AB No 3392 5143 01 2008 02 29 Overhauling instructions 7 It should look like this 8 Check that the latch is moveable and that the spring and pin l...

Page 34: ...AB No 3392 5143 01 2008 02 29 Overhauling instructions Adjustment of E handle 1 Mount the handle on the breaker 2 Activate the trigger lever 3 Adjust the trigger pawl to a clearance of 1 2 mm The slid...

Page 35: ......

Page 36: ...Construction Tools AB Stockholm Sweden No 3392 5143 01 2008 02 29 Any unauthorized use or copying of the contents or any part thereof is prohibited This applies in particular to trademarks model deno...

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