RHINO 2412 Operator's Manual page 88

PROBLEM
*With bucket dumped,
boom is slow in starting
*Bucket does not move
in self-level
*Bucket curls in self-level
*External leakage
Excessive wear on bucket
cutting edge
*Bucket dumps faster than
boom raises. Too much
self-level
*External leakage
* Loaders with optional self-leveling valve.
2412 01/11
© 2011 Alamo Group Inc.
OPERATION
POSSIBLE CAUSE
Dampening office in unloading
spool is plugged.
Set screw is screwed in all
the way.
Dampening orifice in unloading
spool is plugged.
Ports A and B are plumbed
backwards.
Ports C and D are plumbed
backwards.
Damaged seals.
Bucket is riding on cutting edge
instead of wear runners.
Set screw is out of adjustment.
Flow divider spool is stuck
towards port B.
Flow divider spool is installed
wrong.
Damaged flow divider plug
o-ring.
Damaged plunger plug o-ring.
Damaged unloading spool plug
o-ring.
Damaged adjustment cap o-ring.
Leakage around set screw.
Operation Section 4-44
REMEDY
Remove unloading spool and clean
dampening orifice.
Readjust set screw to achieve
proper flow split.
Remove unloading spool and clean
dampening orifice.
Reverse hoses on ports A and B of
self-level valve.
Reverse hoses on ports C and D of
self-level valve.
Remove leaking component;
replace seals.
Use boom "FLOAT" position or
bucket level indicator to ensure
bucket rides on wear runners.
Readjust set screw to achieve
proper flow split.
Remove flow divider spool and
inspect for damage.
Remove spool and install with
internal orifice toward port B.
Remove plug and replace damaged
o-ring.
Remove plug and replace damaged
o-ring.
Remove plug and replace damaged
o-ring.
Remove adjustment cap and replace
damaged o-ring.
Remove adjustment cap and replace
damaged o-ring on set screw.