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OPERATION
3327 01/11 Operation Section 4-44
© 2011 Alamo Group Inc.
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 self-level 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. self-level valve.
*Bucket curls in self-level Ports C and D are plumbed Reverse hoses on ports C and D of
backwards. self-level valve.
*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.
self-level 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
o-ring. o-ring.
Damaged plunger plug o-ring. Remove plug and replace damaged
o-ring.
Damaged unloading spool plug Remove plug and replace damaged
o-ring. o-ring.
Damaged adjustment cap o-ring. Remove adjustment cap and replace
damaged o-ring.
Leakage around set screw. Remove adjustment cap and replace
damaged o-ring on set screw.
* Loaders with optional self-leveling valve.