Servis-Rhino 4211SS manual Troubleshooting Guide

OPERATION

11. TROUBLESHOOTING GUIDE

TROUBLE	POSSIBLE CAUSE	POSSIBLE REMEDY
Loader slow or will not lift	Hydraulic oil too heavy.	Change to proper oil.
and/or dump	Oil filter plugged.	Clean or replace filter.
	Hydraulic pump worn.	Repair or replace pump.
	Oil line restricted or leaking.	Check all hoses and tubes for leaks,
		damage or restrictions. Replace
		damaged or restricted hoses or tube
		oil lines.
	Control valve does not shift	Inspect, clean, repair or replace
	properly.	valve.
	Air in hydraulic system.	Cycle lift cylinders and bucket
		cylinders several times to free
		system of air.
	Cylinder leaks internally.	Replace seals.
	Faulty relief valve (tractor).	Clean and replace relief valve.
Loader chatters or	Air leak in pump inlet line.	Check, tighten or replace inlet line.
vibrates when raising
or lowering	Air in hydraulic system.	Cycle lift and bucket cylinders.
	Oil level too low.	Add oil as required.
External leakage	Damaged seals.	Remove leaking component;
		replace seals.
Pump noisy	Inlet line restricted or leaking.	Check for air leaks, restrictions or
		collapsed hose. Tighten or replace
		hose. Clean filter.
	Oil level too low.	Add oil as required.
	Pump worn or damaged.	Repair or replace pump.
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.

4211-4211SS 01/11 Operation Section 4-43

© 2011 Alamo Group Inc.

OPERATION