XTM Racing Mammoth ST, Руководство пользователя, Страница: 22 / 64

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This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with your
Mammoth ST Nitro Stadium Truck. Most problems encountered can be solved by carefully following the problem-cause-solution sections.
If you cannot solve the problem using this troubleshooting guide,
please feel free to contact us using the Customer Service Information on page # 2.
IF YOU'RE HAVING A PROBLEM WITH THE HITEC AGGRESSOR RADIO SYSTEM:
PROBLEM CAUSE SOLUTION
1) Radio system does not operate A) Transmitter and/or receiver batteries are low A) Replace transmitter and/or receiver batteries
B) Batteries are installed incorrectly B) Check that the polarity of the batteries is correct
C) Receiver battery connector is loose C) Check that receiver battery connector is plugged in and tight
2) Operating range is short A) Transmitter antenna is retracted A) Extended transmitter antenna completely
B) Receiver antenna is not extended B) Extend receiver antenna completely
C) Receiver antenna is cut C) Return receiver to Hitec/RCD for repair
D) Transmitter and/or receiver batteries are low D) Replace transmitter and/or receiver batteries
3) Servos do not operate normally A) Transmitter and/or receiver batteries are low A) Replace transmitter and/or receiver batteries
B) Servo gear stripped or otherwise damaged B) Replace with new gear set
4) When engine is running, radio A) Receiver crystal is loose A) Remove and reinstall the receiver crystal
system operates erratically B) Receiver battery connector is loose B) Check that receiver battery connector is tight
C) Damage to receiver after a crash C) Return to Hitec/RCD for repair
TROUBLESHOOTING GUIDE
PROBLEM CAUSE SOLUTION
1) Engine does not start A) Failed glow plug A) Replace glow plug with new one
B) Glow Starter not charged and/or faulty B) Fully charge glow starter and/or replace
C) Idle mixture screw set too lean C) Reset idle mixture to factory setting (P12)
D) Old or contaminated fuel D) Replace with new fuel
E) Engine flooded with too much fuel E) Remove glow plug and expel fuel from cylinder (P12)
F) Air leak in fuel system and/or engine F) Replace fuel lines and/or tighten all engine bolts
2) Engine does not draw fuel A) Air leak in fuel system and/or engine A) Replace fuel lines and/or tighten all engine bolts
B) High speed needle valve fully closed B) Reset high speed needle valve to factory setting (P12)
C) Idle mixture screw set too lean C) Reset idle mixture to factory setting (P12)
D) Fuel lines kinked D) Check and straighten fuel lines
E) Defective fuel tank E) Replace fuel tank
3) Engine does not transition A) Failed and/or wrong type glow plug A) Replace with new recommended glow plug (P4)
B) Old and/or wrong type fuel B) Replace with new recommended fuel (P4)
C) High speed needle valve set too rich C) Reset high speed needle valve to leaner setting (P16)
D) Idle mixture set too lean D) Set idle mixture richer (P16)
E) Idle mixture set too rich E) Set idle mixture leaner (P16)
F) Air leak in fuel system and/or engine F) Replace fuel lines and/or tighten all engine bolts
4) Engine overheats A) Engine running too lean A) Richen high speed needle valve (P16)
B) Body too restrictive B) Open larger vents in body to allow air to enter and exit
C) Wrong type of fuel used C) Use fuel recommended only for R/C cars (P4)
D) Engine not fully broken in D) Allow engine further break-in time (P15)
5) Engine vibrates excessively A) Engine and/or engine mounts loose A) Tighten all engine and engine mounting bolts
6) Engine does not idle down A) Idle stop screw out of adjustment A) Adjust idle stop screw to factory setting (P12)
B) Engine has developed an air leak B) Check and tighten all engine screws
C) One or more carburetor O-rings damaged C) Replace carburetor O-rings
7) Pull-Start Assembly Slips A) One-way bearing coated with oil A) Clean one-way bearing using rubbing alcohol (P15)
IF YOU'RE HAVING A PROBLEM WITH THE XTM RACING 24.7 NITRO ENGINE:
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