Alamo 6212 manual Troubleshooting Guide, Trouble Possible Cause Possible Remedy

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.
Oil leakage	Loose connections.	Tighten fittings.
	Defective fittings or hoses.	Replace defective parts.
	Worn or damaged o-ring or	Install a seal repair kit.
	wiper seal in cylinder rod end.	See “Cylinder Service”.
	Worn or damaged or rings in	Install an o-ring repair kit.
	valve.
Insufficient lift capacity	Load is greater than boom	Check loader specifications.
	lift capacity.
	Improper hydraulic pump	Repair or replace pump.
	operation.
	Internal lift cylinder leakage.	Replace any worn parts and install
		a seal repair kit. See “Cylinder
		Service”.
	Improper hydraulic valve	Repair or replace valve.
	operation.

6212 01/11 Operation Section 4-43

© 2011 Alamo Group Inc.

OPERATION