OPERATION
OPERATION
PROBLEM | POSSIBLE CAUSE | REMEDY |
|
|
|
*With bucket dumped, | Dampening office in unloading | Remove unloading spool and clean |
boom is slow in starting | spool is plugged. | dampening orifice. |
|
|
|
*Bucket does not move | Set screw is screwed in all | Readjust set screw to achieve |
in | the way. | proper flow split. |
| Dampening orifice in unloading | Remove unloading spool and clean |
| spool is plugged. | dampening orifice. |
| Ports A and B are plumbed | Reverse hoses on ports A and B of |
| backwards. | |
|
|
|
*Bucket curls in | Ports C and D are plumbed | Reverse hoses on ports C and D of |
| backwards. | |
|
|
|
*External leakage | Damaged seals. | Remove leaking component; |
|
| replace seals. |
|
|
|
Excessive wear on bucket | Bucket is riding on cutting edge | Use boom “FLOAT” position or |
cutting edge | instead of wear runners. | bucket level indicator to ensure |
|
| bucket rides on wear runners. |
|
|
|
*Bucket dumps faster than | Set screw is out of adjustment. | Readjust set screw to achieve |
boom raises. Too much |
| proper flow split. |
Flow divider spool is stuck | Remove flow divider spool and | |
| towards port B. | inspect for damage. |
| Flow divider spool is installed | Remove spool and install with |
| wrong. | internal orifice toward port B. |
|
|
|
*External leakage | Damaged flow divider plug | Remove plug and replace damaged |
| ||
| Damaged plunger plug | Remove plug and replace damaged |
|
| |
| Damaged unloading spool plug | Remove plug and replace damaged |
| ||
| Damaged adjustment cap | Remove adjustment cap and replace |
|
| damaged |
| Leakage around set screw. | Remove adjustment cap and replace |
|
| damaged |
* Loaders with optional
2412 01/11 | Operation Section |
© 2011 Alamo Group Inc.