Test Alternator Charging Current - AR15.40-P-5011LFH
Model 222 with engine 276.8/9
Connection scheme
| Check | |||
| Risk of explosion from explosive gas. Risk of poisoning and caustic burns from swallowing battery electrolyte. Risk of injury through burns to skin and eyes from battery acid or when handling damaged lead-acid batteries | No fires, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers. | AS54.10-Z-0001-01A | |
| 1 | Check poly-V belt tension | Model 222 with engine 276.8/9 Model 222 with engine 276.8 If the voltage of the poly-V belt is outside the tolerance range ↓ Replace clamping device |
AR13.20-P-0001LFA |
| 2 | Check poly-V belt for wear | ||
| Model 222 (except 222.163) with engine 276.8/9 | AP13.22-P-1352EW | ||
| 3 | Check electrical lines to on-board electrical system battery (G1), alternator (G2) and control unit for on-board electrical system battery for firm seating and a perfect condition | ||
| 4 | Open engine compartment pre-fuse box (F32/3) and check alternator electrical fuse for damage; replace if necessary | ||
| 5 | Remove lower engine compartment paneling | AR61.20-P-1105LF | |
| 6 | Check ground strap between transmission and body for tight seating and a proper condition | ||
| 7 | Connect up load tester (079) with current clamp (065) according to connecting diagram | ||
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 8 | Start Engine | ||
| 9 | Check charging current at fast rpms, whereby the on-board electrical system battery (G1) is loaded with the load tester (079) | ||
| Model 222.057/157 with engine 276 Model 222.163 with engine 276.824 Model 222.165 with engine 276Charging current for alternator If the charging current is below the specified value ↓ Check alternator (G2) diodes |
*BE15.40-P-1001-01L | ||
| AR15.40-P-9301-02LF | |||
| If diodes are defective ↓ Replace alternator (G2) |
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| Model 222 with engine 276.8 | AR15.40-P-5032LFA | ||
| Model 222 with engine 276.9 | AR15.40-P-5032LFH | ||
| 10 | Turn off Engine | ||
| 11 | Clamp off load tester (079) with current clamp (065) | ||
| 12 | Install lower engine compartment paneling | AR61.20-P-1105LF |
CHECK VALUES FOR ALTERNATOR
| Number | Designation | Engine 276 in model 222.057/157 | Engine 276.824 in model 222.163 | ||
|---|---|---|---|---|---|
| BE15.40-P-1001-01L | Charging current for alternator | max. | A | 250 | 250 |
| min. | A | 190 | 190 | ||
| Engine speed | 1/min | 2000 | 2000 | ||
| Ratio | i= | 2, 77 | 2, 93 | ||
CHECK VALUES FOR ALTERNATOR
| Number | Designation | Engine 276 in model 222.165 | ||
|---|---|---|---|---|
| BE15.40-P-1001-01L | Charging current for alternator | max. | A | 250 |
| min. | A | 190 | ||
| Engine speed | 1/min | 2000 | ||
| Ratio | i= | 2, 93 | ||