Grizzly 230V, H8151 owner manual Service, Troubleshooting

Troubleshooting

SECTION 6: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel- ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Symptom				Possible Cause		Possible Solution
Welder	does		not	1.	Plug/receptacle is at fault or wired incor-	1.	Test for good contacts; correct the wiring.
power	up	or	the		rectly.
breaker trips.				2.	Wiring is open/has high resistance.	2.	Check for broken wires or disconnected/corroded
							connections, and repair/replace as necessary.
				3.	ON/OFF switch is at fault.	3.	Replace faulty ON/OFF switch.
Porosity; small cavi-				1.	Arc length is too long.	1.	Reduce length of arc.
ties or holes caused				2.	Workpiece is dirty.	2.	Remove all grease, oil, moisture, coatings, rust, and
from gas packets in							dirt from workpiece before welding.
weld.
				3.	Damp electrodes.	3.	Use dry electrodes.
				4.	Incorrect electrode used.	4.	Use correct type and size of electrode.
Excessive spatter.				1.	Amperage too high for electrode.	1.	Select large electrode or decrease amperage.
				2.	Voltage too high; arc length too long.	2.	Reduce voltage or arc length.
				3.	Incorrect electrode used.	3.	Use correct type and size of electrode.
Distortion		of base		1.	Excessive heat applied to base metal.	1.	Make tack welds along joint before starting opera-
metal.							tion; select lower amperage for electrode; increase
							travel speed; weld in small segments and allow cool-
							ing between welds.
Burn	through		or	1.	Excessive heat applied to base metal.	1.	Select lower amperage; use smaller electrode;
excessive		penetra-					increase and/or maintain steady travel speed.
tion of base metal.
Lack of penetration.				1.	Improper joint preparation.	1.	Material too thick; joint preparation must provide
							access to bottom of groove.
				2.	Improper weld technique.	2.	Keep arc on leading edge of weld puddle; reduce
							travel speed.
				3.	Insufficient heat applied to weld.	3.	Increase amperage; select larger electrode.
Failure	of	weld	to	1.	Insufficient heat applied to weld.	1.	Increase amperage; select larger electrode.
fuse completely with				2.	Improper welding technique.	2.	Widen groove to access	bottom during welding;
base metal or prior							keep arc on leading edge	of weld puddle; place
weld bead.
							stringer bead in proper location at joint during weld-
							ing.
				3.	Workpiece dirty.	3.	Remove all grease, oil, moisture, coatings, rust, and
							dirt from workpiece before welding.
				4.	Duty cycle exceeded.	4.	Shut down welder and allow it to cool.

H8151 230V Mini Welder -13-