Rosco Maximizer 2B, Инструкция по эксплуатации, обслуживанию и ремонту

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7-8 Rosco Maximizer 2B Asphalt Distributor
Maintenance
1 . Stop the engine, place all controls in neutral, set the
park brake and remove ignition key .
2 . Be sure the tank is empty and the circuit is washed
out .
3 . Allow machine to cool to the touch .
4 . Remove bolts holding access cover to pump
weldment . Remove the access cover from the
pump weldment box .
LOAD SCREEN
DISCHARGE SCREEN
Discharge Screen & Load Screen
Figure 7-5
5 . Remove any trash or debris that is caught in the
screen .
6 . If the screen is damaged in any way, replace it using
genuine Rosco parts .
7 . Use a screwdriver or putty knife to remove the old
gasket on the cover and housing .
8 . Use Rosco high temperature gasket sealant (part
#33384) under this cover to prevent leakage .
9 . Install the cover and tighten the mounting bolts to
their specified torque (28 Ft/Lbs).
Always wear protective clothing,
gloves and a face shield Contact with hot asphalt
can cause severe burns
DO NOT SMOKE around the machine
Fuel, asphalt material and the fumes from either
can explode when exposed to flame or heat from
smoking or other sources
Load Line Screen
A conical screen ( Figure 7-5 ) is located in the load line
to stop debris or trash from entering the system . To
inspect the screen, follow this procedure:
8 . Remove the valve cap that covers the adjusting
screw .
Test gauge placement
Pressure Gauge
Figure 7-4
9 . Slowly turn the adjusting screw in to increase the
relief pressure and turn it out to decrease pressure .
The screw height should extend 9/16 inch (14 mm)
out of the bonnet casting for the needed pressure .
10 . If proper pressure cannot be achieved the valve
may need to be cleaned or replaced .
11 . To clean the relief valve, disconnect the dump line
from the asphalt pump housing . Remove the relief
valve from the asphalt pump housing .
12 . Use cleaning solvent or release agent to thoroughly
clean the valve . Dispose of cleaning material
according to local, state and federal regulations .
13 . Be sure nothing is stuck under the poppet . Check
that the spring moves the poppet easily and seats it
firmly in the base.
14 . If any components are damaged or broken, replace
the valve .
15 . Set the adjusting screw to extend 9/16 inch out of
the bonnet casting .
16 . Attach to the pump housing and connect the dump
line using new gaskets .
Discharge Screen
The discharge screen ( Figure 7-5 ) prevents large
contaminants from reaching the nozzles . It is located
on the outlet side of the pump manifold weldment box .
Clean the screen monthly during the working season .
To clean the screen, follow this procedure:
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