19
Cleaning the Exhaust Port, Muffler,
and Spark Arrestor
See Figure 16.
WARNING:
Stop engine, remove spark plug boot, and allow
engine and muffler to cool before replacing
the spark arrestor. Contact with a hot muffler
or engine could cause burns or other serious
personal injuries.
Note
:
Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions,
the exhaust port, muffler, and/or spark arrestor screen may
become blocked with carbon deposits. If you notice a power
loss with your gas powered tool, you may need to remove
these deposits to restore performance. We highly recom-
mend that only qualified service technicians perform this
service.
The spark arrestor may need to be cleaned or replaced after
repeated use. If replacement is necessary, use Toro part
number 000998216.
To replace the spark arrestor:
1.
Remove the five screws that hold the cover.
Note:
Removing these screws requires the use of a T20
and T25 torx screwdriver.
2.
Remove the cover.
3.
Remove the two screws holding the muffler assembly in
place.
4.
Remove the muffler assembly and muffler gasket. It
may be necessary to work the muffler assembly free
from the muffler gasket.
5.
Separate the muffler cover from the muffler.
6.
Remove the three screws that hold the plates on the
muffler.
7.
Remove the spark arrestor.
8.
Replace the old spark arrestor with the new one.
9.
Assemble the muffler by reinstalling the plates and
tightening the three screws (torque to 18 in.lb
[2.03 Nm] minimum, 22 in.lb. [2.48 Nm] maximum).
10.
Reassemble the muffler and muffler cover and attach to
the muffler gasket with the two screws.
11.
Reinsert the muffler assembly and tighten two screws to
engine (torque to 60 in.lb [6.78 Nm] minimum, 80 in.lb.
[9.04 Nm] maximum).
12.
Reinstall the cover on the tool and fasten with the five
screws (torque to 30 in.lb [2.85 Nm] minimum,
45 in.lb. [4.28 Nm] maximum).
Note:
Do not over-tighten screws.
WARNING:
To avoid a fire hazard, never run the Powervac
™
without the spark arrestor in place.
Vacuum Bag
A dirty bag will reduce performance. To clean the bag, turn it
inside out and shake. Wash the bag in soapy water at least once
a year. Replacement parts available online at www.toro.com.
Fuel Cap
WARNING:
Check for fuel leaks. A leaking fuel cap is a fire
hazard and must be replaced immediately. If
you find any leaks, correct the problem before
using the product. Failure to do so could result
in a fire that could cause serious personal injury.
The fuel cap contains a non-serviceable filter and a check
valve. A clogged fuel filter will cause poor engine per
-
formance. If performance improves when the fuel cap is
loosened, the check valve may be faulty or filter clogged.
Replace the fuel cap if required.
Maintenance
Spark
Arrestor
Plate
Muffler
Cover
Muffler
Gasket
Screw(s)
Screw
Cover
Screw(s)
Muffler
Figure 16
Summary of Contents for POWERVAC 51985
Page 25: ...Notes...
