Forest Equipment Maintenance Final Test

Chain shot is the term used to describe the piece or pieces from the broken end of a saw chain that are ejected at high velocity.

Chain shot only occurs from the guide bar tip area.

The ALPA auto chain grinder only sharpens one side of the chain at a time.

Under Ohm’s law, Power in watts (P) = Amperage (I) times voltage (V), P= I x V

It is ok to mix fittings from different manufactures when trying to fix a hose

It is a good practice to make an adjustment and test the result vs making a lot of adjustments and not knowing which ones have worked.

A thorough preventative maintenance program is a key factor to a safe and efficient work environment

When you make adjustments you should write them down in your maintenance book to be able to review if the problem happens again or the adjustment does not work?

When inspecting & changing hydraulic hoses an employee must wear the appropriate personal protective equipment.

You should not try to fix poor calibration with adjustments.

A small hole in a high pressure hydraulic line can cause severe damage to unprotected skin

The following should be taken into consideration when replacing a hose:
S – Size
T – Temperature
A – Application
M – Material to be conveyed
P – Pressure
E – Ends or couplings
D – Delivery(volume)

General guidelines for safe charging of batteries:
– charge batteries in well ventilated area, don’t smoke around charging batteries as they can explode
– wear protective goggles and clothing
– always assume that explosive mixtures of hydrogen and oxygen gases are present near the battery at all times
– don’t remove caps when charging a battery. Most vent caps are now designed to be flame resistant
– cover the vent cap area of battery with a wet cloth to inhibit sparks from igniting escaping gas
– connect charger to battery terminals while charger is turned off and then turn on the charger, THIS REDUCES THE CHANCE OF SPARKS BEING GENERATED

Under Ohm’s law, voltage (V) = amperage (I) x resistance (R), V=IxR

The first step to repair of a machine is to ensure the machine is locked out and in a zero energy state (all pressure is released from the system you will be repairing.

The relief edge of the knives must be really sufficiently close to the tree trunk to ensure a good delimbing result, especially with smaller trees. (select how close to the tree trunk)

Check the following factors that reduce hose lifespan.

Please select the three main components of a charging system

You should never make changes to a machine without testing the results.

You should never run your hand along a hose to inspect for leaks.

The recommended grinding disk for sharpening knives and reducing heating and tempering of the metal is?

You must check under the cabin of the machine to locate the pumps and base machine valves to make a visual inspection for leaks if the pumps, valves and hydraulic hoses and check electrical wires and connectors?

You need to check if the engine air intake system position is correct?

A diesel engine has which of the following parts? ( check only the ones that apply to a diesel engine)

It is best to use a water pressure washer to clean out the hydraulic and electronic valves vs using compressed air?

What is the principal used by the diesel engine for combustion?

Any type of grinding disk can be used for sharpening the knives on the processor?

Having a dirty air filter is hard on your engine and its operation?

The benefits of a good Preventative Maintenance include: check all that apply

The upper knife should be adjusted how many millimeters from the trunk?

The top knife has to be in contact with the tree at all times?

Having a dirty air filter causes poor fuel efficiency and lack of power?

It is normal procedure to use a small 3 lb sledge or equivalent to straighten the edge of the teeth before sharpening.

Choose the issues that excessive heat can cause? check all that apply

One of the most important factors with delimbing quality is having sharp knives.

You do not have to check the middle of the crane base to make sure the hoses did not rub together too much causing them to start to leak or rupture.

You must check hydraulic oil level and central lubrication reservoir each week when you perform the weekly maintenance check?