Great Plains 3SF45 Operator Manual - Manual (Page 26)

4/8/99 4-2
170-062M
DRIVE & METERING SYSTEM ADJUSTMENTS (CON’T.)
DRIVE TRAIN SYSTEM
Your grain drill used standard no. 40 roller chain through out its drive system. The drive system is simple and designed
for low maintenance. The gauge wheel drive is fully enclosed with the gauge wheel arms. It contains an adjustable
chain idler to maintain correct tension on the chain.
Inspection covers on the side and bottom of each gauge wheel drive arm should be removed at the beginning of each
season to insure that the chain and sprocket tension is correct. Be sure to replace covers.
All other chains are tightened with sprocket on idler arm and should be checked at the beginning of each planting season
and periodically if the machine is under continuous use. All drive chain tighteners run on the slack side of the driving
chain. Care should be taken to reinstall and tighten all chains on the slack side if service is required.
While inspecting, 1) Check each idler to insure that it is taking up any excess chain slack.
2) Check each chain to insure that is not over-tight paying special attention
to the clutch’s drive chain.