Dayton Operating Instructions and Parts Manual | 3VG79B |
Dayton® Portable
Forced Air Heater
Maintenance (Continued)
5.Dry fan thoroughly.
6.Replace fan on motor shaft. Place fan hub flush with end of motor shaft (See Figure 6).
Fan
Motor
Flush
Motor
Shaft
Setscrew
Figure 6 - Fan Cross Section
7.Place setscrew on flat of shaft. Tighten setscrew firmly
8.Replace fan guard and upper shell.
AIR OUTPUT, AIR INTAKE, AND LINT FILTERS
1.Remove upper shell (See Figure 5, page 5).
2.Remove filter end cover screws using 5/16"
3.Remove filter end cover.
4.Replace air output and lint filters.
5.Wash or replace air intake filter (See Preventative Maintenance Schedule, page 9).
6.Replace filter end cover.
7.Replace fan guard and upper shell.
IMPORTANT: Do not oil filters.
Air Intake Filter | Filter End Cover |
Fan Guard
Lint Filter
Air Output
Filter
Figure 7 - Air Output, Air Intake, and Lint
Filters
PUMP PRESSURE ADJUSTMENT
1.Remove pressure gauge plug from filter end cover (See Figure 8).
2.Install accessory pressure gauge (Part Number HA1180) (See Figure 9).
3.Start heater (See Operation, page 5). Allow motor to reach full speed.
4.Adjust pressure to 6.2 psi. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure (See Figure 9).
5.Stop heater. Remove pressure gauge. Replace pressure gauge plug in filter end cover.
Relief Valve
Pressure
Gauge Plug
Figure 8 - Pressure Gauge Plug Removal
Pressure
Gauge
Figure 9 - Adjusting Pump Pressure
FUEL FILTER
1.Remove side cover screws using 5/16"
2.Remove side cover (See Figure 10, page 7).
3.Pull lower fuel line off fuel valve fitting.
4.Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank.
5.Wash fuel filter with clean fuel and replace in tank.
6.Attach lower fuel line to fuel valve fitting.
7.Replace side cover.
FUEL VALVE
1.Remove side cover (See Figure 10), fan guard, and upper shell (See Figure 5, page 5) screws using 5/16"
2.Remove fan (See Fan, pages 5 and 6).
3.Pull lower fuel line off the fuel valve fitting (See Figure 11, page 7).
High Voltage.
6
