Maintenance; Fan Blades - Newmac NM-75K Operating Instructions Manual

Portable forced air heaters
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USE ORIGINAL EQUIPMENT REPLACEMENT PARTS. Use of
third party or other alternate components will void warranty
and may cause unsafe operating conditions.
FUEL TANK
Flush every 200 hours of operation or as needed. DO NOT
flush with water, use fresh 1-K kerosene only.
AIR INTAKE FILTER
Wash and dry with soap and water every 500 hours of
operation, or as needed.
• Remove screws along side of heater using medium
Phillips screwdriver.
• Lift off upper shell.
• Remove fan guard.
• Wash or replace air intake filter.
• Reinstall fan guard and upper shell.
AIR OUTPUT FILTER, LINT FILTER REPLACE EVERY 500
HOURS OF OPERATION OR ONCE A YEAR
• Remove upper shell and fan guard.
• Remove end filter cover screws using medium Phillips
screwdriver.
• Remove end filter cover.
• Replace air output and lint filter.
• Reinstall end filter cover.
• Reinstall fan guard and upper shell.

FAN BLADES

• CLEAN EVERY SEASON OR AS NEEDED
• Remove upper shell.
• Use M6 Allen wrench to loosen set screw which holds
fan blade to motor shaft.
• Slip fan blade off motor shaft.
• Clean fan blade using soft cloth moistened with
kerosene or solvent.
• Dry fan blade thoroughly.
• Reinstall fan blade to motor shaft.
• Place fan blade hub flush with
end of motor shaft.
• Place set screw on flat of shaft.
• Tighten screw firmly (40-50 inch
pounds/ 4.5-5.6 N-m). Reinstall
upper shell.
NOZZLE
Clean nozzle as needed
• Open upper shell.
• Remove fan blade.
• Remove fuel and air line hoses
from burner head.
• Remove igniter wire from spark
plug.
• Remove spark plug from Nozzle
rod using medium Phillips
screwdriver.

Maintenance

WARNING:
Never service heater while it is plugged in or while hot!
Air Hose
Lint Filter
Burner Head
Ignitor
Wire
Fuel Hose
-10-
Air Out Put Filter
End Filter Cover
Set Screw
Moter Shaft
Fan Blade
Fan Assembly
Spark Plug
Fuel Hose
Air Hose Fitting
Fitting
Intake Filter
Flush
Nozzle
Rod

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This manual is also suitable for:

Nm-125kNm-175kNm-215k

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