Crafco EZ 500 Series II, Manual

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EZ 500 Series II Melter Part Manual
Chapter 5 Operating Instructions
©2019 by Crafco, Inc. All Rights Reserved………………..…………………………………..….Operating Instructions 5-5
5.3 Altitude Compensation System
This unit may be equipped with an Altitude Compensation System. If so, there will be a small boxed
housing mounted right below the engine start key panel on the engine mount cross member. The
system is automatic during most operating conditions. However, if the machine is taken from above
or below an altitude of 2,624 ft. (800 Meters) while the engine is running, the engine will need to be
stopped and then restarted. There is a yellow indicator light that illuminates when the machine is
above 2,624 ft. (800 Meters) indicating that the system is active.
5.4 About the Heated Hose, Wand, Valve, and Tip Guard
The Heated Hose
The heated hose supplied with the machine is Teflon-lined with steel over braid. It has a heating
element, which runs the length of the hose to heat the material within the hose. The hose is
covered with high temperature, durable rubber.
The Wand
The wand has an aluminum tube to protect both the wand and the operator. The pistol grip actuator
is equipped with an electric switch which, when depressed, sends a signal to actuate the pump.
The wand is equipped with a trigger lock to prevent accidental pump actuation when it is not
pumping material. The trigger must be in the “LOCKED” position at all times except when
intentionally pumping material.
The Valve
The wand has a disposable duckbill valve on the end, which shuts off the flow of material when the
pump is turned off and prevents excessive dripping of material. This valve also directs the material
into a stream for easy application into the crack. Other sealing tips are available. See
10.0 Tools
and Accessories for other sealing tips and options.
Tip Guard
The wand has a Tip Guard installed at the factory only when a duckbill is installed. This Tip Guard
is not required when using sealing disk or dripless tip adapter. The purpose of this guard is to
prolong the life of the duckbill and to protect the operator in the event of a duckbill failure. Ensure
this guard is installed properly before operating equipment. See below.
50270
50278
TIP GUARD IS
HELD IN PLACE
WITH 2 BOLTS
TRIGGER LOCK
MAKE SURE TRIGGER LOCK IS
ENGAGED AT ALL TIMES EXCEPT
WHEN APPLYING MATERIAL!
LOCKED UNLOCKED
INSTALL 26084 MINI
GEAR CLAMP ONTO
THE DUCKBILL VALVE