Toro TC 1000 User Manual

Primer Pump Operation (cont’d)
1. The vacuum produced by the diaphragm
seals the outlet check valve. This prevents
fuel from being drawn from the fuel line.
2. The inlet valve is drawn toward the porous
valve cushion which allows fuel to be drawn
from the pickup line inside the tank. This
action fills the primer diaphragm with fuel
and readies it for the next pump.
Primer Pump Disassembly
1. Pull the primer pump from the tank and
remove the fuel line. The primer pump is
press fit into the fuel tank. See Fig.
39.
Figure 39
2. Unscrew the rubber cap/button from the
pump. See Fig. 40.
Figure 40
3. Carefully lift out the top valve seat with the
valve cushion, and
2 ball valves. See Fig. 41
20
4.
TOP VALVE SEAT
Figure 41
Insert a thin, non-puncturing punch through
the hole in the bottom of the pump and
carefully push out gasket
A, valve seat A with
valve cushion and gasket
B.
Primer Pump Inspection
1. Inspect the disassembled primer pump for
contamination or damaged parts.
2. Clean thoroughly in a mild soap and water
solution.
3. If the primer pump is suspect after inspec-
tion, the entire primer pump assembly should
be replaced.
Primer Pump Reassembly
1. Before reassembling, familiarize yourself
with the configuration
of the parts to ensure
they are properly installed. See Fig.
42.
GASKET B
\
VALVE SEAT B
PUMP BODY
Figure 42

Toro TC 1000 Specifications

General

Brand	Toro
Model	TC 1000
Category	Trimmer
Language	English