{"id":2830,"date":"2023-11-17T22:47:48","date_gmt":"2023-11-17T21:47:48","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2830"},"modified":"2023-11-17T22:47:48","modified_gmt":"2023-11-17T21:47:48","slug":"checking-renewing-and-tightening-connecting-rod-bolts","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/17\/checking-renewing-and-tightening-connecting-rod-bolts\/","title":{"rendered":"Checking, renewing and tightening connecting rod bolts"},"content":{"rendered":"

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03\u2014310 Checking, renewing and tightening connecting rod bolts<\/strong><\/div>\n<\/div>\n<\/td>\n
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Dimensions of connecting rod bolt<\/strong><\/div>\n<\/div>\n<\/td>\n
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Part no. Thread dia.<\/div>\n<\/div>\n<\/td>\n
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Necked-down dia. when new (Fig. item 1)<\/div>\n<\/div>\n<\/td>\n
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Min. necked-down dia. c<\/div>\n<\/div>\n<\/td>\n
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615 038 02 71 M10x1<\/div>\n<\/div>\n<\/td>\n
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8.4-0.1<\/div>\n<\/div>\n<\/td>\n
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8.0<\/div>\n<\/div>\n<\/td>\n
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Installation pressure of connecting rod bolt<\/div>\n<\/div>\n<\/td>\n
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45000 N<\/div>\n<\/div>\n<\/td>\n
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Tightening of connecting rod nuts<\/strong><\/div>\n<\/div>\n<\/td>\n
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Initial tightening torque<\/div>\n<\/div>\n<\/td>\n
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40-50 Nm<\/div>\n<\/div>\n<\/td>\n
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Angle of rotation torque<\/div>\n<\/div>\n<\/td>\n
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90-100\u00b0<\/div>\n<\/div>\n<\/td>\n
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Special tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Angle of rotation tool<\/div>\n<\/div>\n<\/td>\n
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\"om617<\/div>\n<\/td>\n
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116 <\/strong>589 01 13 00<\/strong><\/div>\n<\/div>\n<\/td>\n
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Self-made tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Steel plate<\/div>\n<\/div>\n<\/td>\n
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refer to Fig. item 3<\/div>\n<\/div>\n<\/td>\n
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Checking<\/strong><\/div>\n<\/div>\n<\/td>\n
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1 <\/strong>Measure minimum necked-down dia. prior to re-use.<\/div>\n<\/div>\n<\/td>\n
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03.8-310\/1 F 2<\/div>\n<\/div>\n<\/td>\n
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Note: <\/strong>When the minimum necked-down dia. of 8.0 mm has been attained or is less than 7.2 mm, renew connecting rod bolt.<\/div>\n
Knock-out connecting rod bolt only for replacement.<\/div>\n<\/div>\n<\/td>\n
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Replacement<\/strong><\/div>\n<\/div>\n<\/td>\n
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Z1004-4752\/1<\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
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2\u00a0 \u00a0 Knock-out connecting rod bolts.<\/div>\n
3\u00a0 \u00a0Press new connecting rod bolts into connecting rod at approx. 45 000 N or knock-in with a hammer and mandrel.<\/div>\n
When knocking-in or pressing-in connecting rod bolts, place connecting rod on a ground steel plate.<\/div>\n<\/div>\n<\/td>\n
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Hole spacing a = 67 mm Bore\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0b= 11 mm<\/div>\n<\/div>\n<\/td>\n
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Tightening<\/strong><\/div>\n<\/div>\n<\/td>\n
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4\u00a0 \u00a0 Lubricate nuts and threaded support.<\/div>\n
5\u00a0 \u00a0Tighten connecting rod nuts to 40\u201450 Nm initial torque and 90\u2014100\u00b0 angle of rotation torque.<\/div>\n
Attention!<\/strong><\/div>\n
Tighten connecting rod bolts knocked-in with a hammer for the first time <\/strong>at 60\u201470 Nm <\/strong>initial torque and 90\u2014100\u00b0 angle of rotation torque.<\/div>\n<\/div>\n<\/td>\n
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This specification must be strictly observed, since otherwise the connecting rod nuts may become loose.<\/div>\n
Note: <\/strong>If no angle of rotation tool is available, the connecting rod nuts can also be tightened by means of a normal socket wrench with tommy bar in one <\/strong>step by an angle of 90\u2014100\u00b0. This angle should be estimated as accurately as possible. To eliminate angle <\/strong>of rotation errors, <\/strong>do not use torque wrench <\/strong>for tightening according to angles of rotation.<\/div>\n<\/div>\n<\/td>\n
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03.8-310\/2 F 2<\/div>\n<\/div>\n<\/td>\n
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    03\u2014310 Checking, renewing and tightening connecting rod bolts   Dimensions of connecting rod bolt     Part no. Thread dia. Necked-down dia. when new (Fig. item 1) Min. necked-down dia. c 615 038 02 71 M10x1 8.4-0.1 8.0 Installation pressure of connecting rod bolt   45000 N Tightening of connecting rod nuts     Initial tightening torque   40-50 Nm Angle of rotation torque   90-100\u00b0   Special tool   Angle of rotation tool 116 589 01 13 00   Self-made tool   Steel plate refer to Fig. item 3   Checking   1 Measure minimum necked-down dia. prior to re-use. 03.8-310\/1 F 2       Note: When the minimum necked-down dia. of 8.0 mm has been attained or is less than 7.2 mm, renew connecting rod bolt. Knock-out connecting rod bolt only for replacement.   Replacement Z1004-4752\/1 2\u00a0 \u00a0 Knock-out connecting rod bolts. 3\u00a0 \u00a0Press new connecting rod bolts into connecting rod at approx. 45 000 N or knock-in with a hammer and mandrel. When knocking-in or pressing-in connecting rod bolts, place connecting rod on a ground steel plate.   Hole spacing a = 67 mm Bore\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0b= 11 mm Tightening 4\u00a0 \u00a0 Lubricate nuts and threaded support. 5\u00a0 \u00a0Tighten connecting rod nuts to 40\u201450 Nm initial torque and 90\u2014100\u00b0 angle of rotation torque. Attention! Tighten connecting rod bolts knocked-in with a hammer for the first time at 60\u201470 Nm initial torque and 90\u2014100\u00b0 angle of rotation torque.   This specification must be strictly observed, since otherwise the connecting rod nuts may become loose. Note: If no angle of rotation tool is available, the connecting rod nuts can also be tightened by means of a normal socket wrench with tommy bar in one step by an angle of 90\u2014100\u00b0. This angle should be estimated as accurately as possible. To eliminate angle of rotation errors, do not use torque wrench for tightening according to angles of rotation.   03.8-310\/2 F 2        <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[47,44],"tags":[],"class_list":["post-2830","post","type-post","status-publish","format-standard","hentry","category-crankshaft-assembly-om617","category-om617"],"aioseo_notices":[],"featured_image_src":null,"author_info":{"display_name":"mackuz","author_link":"https:\/\/mbci.mackuz.ovh\/index.php\/author\/mackuz\/"},"_links":{"self":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/comments?post=2830"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2830\/revisions"}],"predecessor-version":[{"id":2831,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2830\/revisions\/2831"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}