NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M100 Tow Tractor Manual No. 46052
PAGE 53
CHAPTER 2 MAINTENANCE
1 SERVICING
3. Apply soapy water or a leak detector solution to hoses, connections, and
assemblies while system pressure is at least 90 PSI (620 kPa) to verify
leakage.
4. The LPG system requires tight vacuum connections. If hose ends are belled,
5. Water hoses between the engine and vaporizer are clamp on type with
reusable clamps. Replace any hose that shows signs of deterioration.
Repairing Hoses and Fittings
1.
properly.
2.
be repaired.
3.
only). Do not use a liquid or plastic thread sealer. It might enter the LPG lines
during assembly. Use only a stick type pipe joint compound.
4.
to pipe threads. To properly install:
• Hand tighten.
• Wrench tighten 1-1/2 to a maximum of 3 turns.
• Pressurize entire system, then recheck for leaks.
5. Keep fuel hoses at least 2 inches from exhaust system parts. Hoses must be
Every 250 Hours Of Operation
1.
tightness.
2. Gaskets and diaphragms deteriorate if LPG components are removed
from engine or engine has been in storage. In these circumstances it is
recommended to have your LPG system evaluated by trained LPG service
personnel. Have the vaporizer, regulator and mixer bowl tested for seal
leakage.
3. The proper operation of the LPG system is based on vacuum originating at the
throttle body. To ensure full availability of vacuum at all components, every 250
hours check:
•
• needed.
•
• Check for loose intake manifold.
APRIL 15, 2012
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