Troy-Bilt 78 User's Manual | Page 9

Troy-Bilt Automobile Parts User's Manual - 78.
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Introduction

3

Fasteners

Most of the fasteners used on the MTD engine are metric. Some are fractional inches. For this reason, 
wrench sizes are frequently identified in the text, and measurements are given in U.S. and metric scales.

If a fastener has a locking feature that has worn, replace the fastener or apply a small amount of releas-
able thread locking compound such as Loctite® 242 (blue).

Some fasteners, like cotter pins, are single-use items that are not to be reused. Other fasteners such as 
lock washers, retaining rings, and internal cotter pins (hairpin clips) may be reused if they do not show 
signs of wear or damage. This manual leaves that decision to the judgement of the technician.

Assembly instructions

Torque specifications may be noted in the part of the text that covers assembly. They may be summa-
rized in tables along with special instructions regarding locking or lubrication. Whichever method is more 
appropriate will be used. In many cases, both will be used so that the manual is handy as a quick-refer-
ence guide as well as a step-by-step procedure guide that does not require the user to hunt for informa-
tion.

Lubricant quantity and specification may be noted in the part of the text that covers maintenance, and 
again in the section that covers assembly. They may also be summarized in tables along with special 
instructions. Whichever method is more appropriate will be used. In many cases, the information will be 
found in several places in the manual so that the manual is handy as a quick-reference guide as well as a 
step-by-step procedure guide that does not require the user to hunt for information.

The level of assembly instructions provided will be determined by the complexity of reassembly, and by 
the potential for damage or unsafe conditions to arise from mistakes made in assembly. 

Some instructions may refer to other parts of the manual for subsidiary procedures. This avoids repeating 
the same procedure two or three times in the manual.

For Parts Call 606-678-9623 or 606-561-4983

www.mymowerparts.com

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