Engine Coupler Gap - MTD 2010 Shop Manual

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2010 Log Splitters

Engine coupler gap

MTD uses jaw type couplers to connect the engine to the pump. Jaw type couplers are made of three parts; two
metallic coupler halves and a polymer spacer referred to as a spider. This type of coupling will isolate the engine
vibration from the pump. It also compensates for minor pump mis-alignments.
The coupler must have a gap of 0.010" to 0.060" (0.25 - 1.5 mm) between the two metal halves in order to isolate
the pump from the engine vibrations. To set the gap:
1. Inspect the spider for signs of damage or wear.
NOTE: If the spider has signs of wear or damage
the pump must be removed to replace the
spider.
2. Remove the set screw from the pump coupler half.
See Figure 2.8.
1. Insert a 0.010" to 0.060" (0.25 - 1.5 mm) feeler
gauge between the coupler halves. See Figure 2.9.
2. Adjust the pump coupler halve until there is a slight
drag on the feeler gauge.
3. Apply a small amount of releasable thread locking
compound such as Loctite® 242 (blue) to the set
screw.
4. Install the set screw and tighten it to a torque of 78
in lbs (9 Nm).
5. Test run the log splitter in a safe area before return-
ing it to service.
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Set screw
Figure 2.8
Figure 2.9