扭转转动连杆带帽螺钉
使用约翰迪尔John Deere柴油机轴方法扭转转动连杆带帽螺钉:
1.将带帽螺钉拧紧至扭矩值后,标记连杆盖和套筒。
2.将扳手手柄平行于约翰迪尔John Deere柴油机曲轴轴线(A)的中心线放置。
3.拧紧1/4圈(90–100) 顺时针方向,直到扳手手柄垂直于约翰迪尔John Deere柴油机曲轴轴线(B)的中心线,如图所示。
A-平行于曲轴轴线中心线,B-垂直于曲轴轴线的中心线
使用JT05993扭矩角规扭转转动连杆带帽螺钉:
将带帽螺钉拧紧至之前提供的初始扭矩值后,按照仪表提供的方向,将每个带帽螺钉扭转90–100.
检查约翰迪尔John Deere柴油机旋转是否过紧
1.将曲轴旋转几圈,以确保约翰迪尔John Deere柴油机旋转时没有过度拧紧。
2.检查缸套是否因活塞环安装不当或损坏而产生深度划痕。
3.检查杆的侧面间隙。必须有轻微的左右移动。
完成最终装配
注意:请参阅正确的总成以安装6。安装减震器和曲轴皮带轮。
组件。(第040组)050.)皮带,参见机器技术手册。
2.安装注油系统部件。(总成060.)8.安装排气歧管和进气总成。(第080组)
3.使用新垫片和盖安装气缸盖
螺钉。安装气门传动系部件。(组020 9.安装起动电机。(组100.)序列号(-199999)。)(第021组,S.N.(200000-)
10.向约翰迪尔John Deere柴油机加注清洁的机油和适当的冷却液。
4.安装燃油喷射系统部件。(见在特定燃油的相应CTM中的组090 11.将约翰迪尔John Deere柴油机安装到车辆中(如果已拆下)。(参见系统。)机器技术手册。)
5.安装节温器壳体和冷却液旁通管,12.执行约翰迪尔John Deere柴油机磨合。(第020组序列号(如果删除)(第070组)199999)(第021组,S.N.(200000-)
Torque-Turn Connecting Rod Cap Screws
Using Engine Axis Method to Torque-Turn Connecting Rod Cap Screws:
1. After tightening cap screws to torque values, mark connecting rod cap and socket.
2. Position handle of wrench parallel to centerline of engine crankshaft axis (A).
3. Tighten 1/4 turn (90–100) clockwise until handle of wrench is perpendicular to centerline of engine crankshaft axis (B) as shown.
A—Parallel to Centerline of Crankshaft Axis B—Perpendicular to Centerline of Crankshaft Axis
Using JT05993 Torque Angle Gauge to Torque-Turn Connecting Rod Cap Screws:
After tightening cap screws to initial torque values provided earlier, follow directions provided with gauge and TORQUE-TURN each cap screw 90–100.
Check Engine Rotation for Excessive Tightness
1. Rotate crankshaft several revolutions to be sure engine rotates without excessive tightness.
2. Check liners for deep scratches caused by an improperly installed or broken piston ring.
3. Check side clearance of rods. Must have slight side-to-side movement.
Complete Final Assembly
NOTE: Refer to the proper group for installation of 6. Install vibration damper and crankshaft pulley.
components. (Group 040.)
050.) belt, see machine Technical Manual.
2. Install oiling system components. (Group 060.) 8. Install exhaust manifold and intake assembly.
(Group 080.)
3. Install cylinder head using a new gasket and cap
screws. Install valve train components. (Group 020 9. Install starting motor. (Group 100.) S.N. ( —199,999).) (Group 021 S.N. (200,000— ).)
10. Fill engine with clean oil and proper coolant.
4. Install fuel injection system components. (See
Group 090 in appropriate CTM for specific fuel 11. Install engine in vehicle (if removed). (See system.) machine Technical Manual.)
5. Install thermostat housing and coolant bypass pipe, 12. Perform engine break-in. (Group 020 S.N. ( — if removed. (Group 070.) 199,999).) (Group 021 S.N. (200,000— ).)
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