Cooling System Coolant Level - Check
发动机停机并冷却后检查冷却液液位。
配备冷却液回收箱的发动机
- 观察在冷却液回收箱（如有配备）中的冷却液液位。 将冷却液回收箱中的冷却液液位保持在"满 (FULL) "标记 (2) 。
Show/hide table
 | |
| 图 1 | g01268104 |
(1) 回收箱加注口盖 (2) "冷态满 (COLD FULL) "标记 (3) "低添加 (LOW ADD) "标记 | |
- 慢慢拧松加注口盖 (1) ，以释放掉所有压力。 取下加注口盖。
- 将正确的冷却液混合液加注到水箱中。 清参阅本操作和保养手册, "加注容量和建议"中关于冷却液的资料。 不要加注冷却液回收箱超过"冷态满 (COLD FULL) "标记 (2) 。
- 清洁加注口盖 (1) 和箱口。 将加注口盖装回去，检查冷却系统有无渗漏。
注: 发动机正常操作期间，随着冷却液温度升高，冷却液将会膨胀。 发动机运转期间，多余的冷却液将会被压入冷却液回收箱中。 当发动机停机并冷却时，回收箱中的冷却液将会回到发动机内。
没有配备冷却液回收箱的发动机
Show/hide table
 |
加压的系统： 热的冷却液能造成严重的烫伤。 在发动机停机，等待冷却系统部件冷却下来后再打开冷却系统加注口盖。 缓慢松开冷却系统加注口盖，以释放掉所有压力。 |
- 慢慢拆下冷却系统加注口盖，以释放掉压力。
- 将冷却液液位保持在加注管底部以下 13 mm (0.5 in) 之内。 如果发动机配备了观察孔，保持冷却液液位在观察孔内适当的水平。
- 清洁冷却系统加注口盖，检查加注口盖垫圈的状况。 如果加注口盖垫圈损坏，更换冷却系统加注口盖。 重新安装冷却系统加注口盖。
Show/hide table
 | |
| 图 2 | g00103639 |
典型加注口盖垫圈 | |
- 检查冷却系统是否渗漏。
Caterpillar Information System:
C4.4 Industrial Engine Fuel System - Prime
2006/05/15 New Crankshaft Front Seal {1160}
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Modem (SMS Bypass Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Gen Set Module Circuit Breaker
Dealer Inventory of UPS Flywheel Bearings{4480, 7551} Dealer Inventory of UPS Flywheel Bearings{4480, 7551}
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Thyristor (SMS Bypass Cabinet)
3500 Generator Set Engines Engine Oil Temperature Sensor - Resistive Temperature Device
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Flywheel Bearing - Replace
3500 Generator Set Engines Engine Oil Pressure Sensor
3408C and 3412C Marine Engines Crankshaft
3044C Industrial Engine Engine Air Cleaner Element (Dual Element) - Clean/Replace
3044C Industrial Engine Engine Mounts - Inspect
UPS 1000S/ UPS 1200S Uninterruptible Power Supplys Bringing UPS Online
TH48-E70 Petroleum Transmission Plate Locations and Film Locations
2006/07/10 New Parts are Available for Engines that use Heavy Duty Air Cleaners {1051, 1316, 1317}
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Internal Component Preremoval Steps (Input/Output Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies System Fuse (Input/Output Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Fan Transformer
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Isolation Switches
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Fan (Input/Output Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies External Source Sync Relay and Terminal Block
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Gen Set Module Circuit Breaker (Input/Output Cabinet)
UPS 1000S/ UPS 1200S Uninterruptible Power Supplys Transfer to Bypass Mode
Troubleshooting the Fuel Injection System For 3054 and 3056 Engines {1251, 1252} Troubleshooting the Fuel Injection System For 3054 and 3056 Engines {1251, 1252}