23. Insert above #15R and 15L Clutch Assemblies into respective locations inside Body.
From outside Body, slide #14 Pivot Rod through Body Wall, then through tube on each
Clutch, and finally through other Body Wall. (CHECK "BELT DIAGRAMS" FOR PROPER #34
BELT WRAPPING OVER #28 IDLERS.) Note that Clutch Assemblies have freedom to slide left
and right on the #14 Pivot. At this time by sliding Clutches left and right, align the
#28 Idler Wheels with their respective #29 Pulleys mounted on #20 Shafts. Remove #14
Pivot Rod and attach remaining ends of #49 Springs to their respective "inside" position
of #1S Clip using 3/8-16 x 1 Cap Screws and Locknuts similarly as in Step #22. (Again,
check that all ends of #49 Springs can rotate freely!) Reinsert #14 Pivot Rod into #15R
and 15L Clutch Assemblies; this time using 5/8 WI Washers as shims along #14 Rod to hold
the Clutch alignment determined above. From outside of 1AR and 1AL Body Wall secure #14
Pivot Rod with 5/8 Snap Rings.
24. Now you must properly adjust #28 Idler Wheel assemblies you assembled above. Slide
Wheel assemblies rearward (or forward as the case may be) so that the Clutch Control
Handles can move forward and backward a total distance of approximately 4" as measured
at the "handgrip" ends of #15 Control Handles. Make this travel equal in both Control
Handles and then tighten each 3/8-16 x 3-1/4 Cap Screw (3/8-16 x 5 Cap Screw on MD1612 &
MD1600). (Check for proper 90° angle of #16 Guides as explained in Clutch Assembly Step
above.) NOTE: Check to make sure that all four #16 Guides ride with their "90° hooked
end" to the outside of their #34 Belt. In proper operation, as a #28 Idler Wheel moves
away from tightening a #34 Belt, simultaneously the "90° hooked end" of its respective
#16 Guide should start to hit the backside of the #34 Belt and start to pull it "in" to
eliminate any excessive slack and release its grip on #31 Pulley.
25. Take Engine and slide on "hub first" #32 Pulley onto Engine's Crankshaft. Slide
1/4 sq. x 1 Key into Pulley's hub.
A. On 7 hp Engine: Install the two #17 Belt Guides using a 5/16 Lock Washer and
5/16 WI Washer over ends of two 5/16-24 x 1 Cap Screws which are each inserted into
"loop end" of #17 Belt Guides. Follow with second 5/16 WI Washer on each and then screw
each Guide Assembly into the two rear 5/16-24 threaded holes in Engine Case - see "7 hp
Engine - PTO View" Drawing for proper assembly; note that "90° hooked ends" of #17 Belt
Guides point away from Engine Case.
B. On 12 and 16 hp Engine: Take #56 Baffle and align its two 3/8 holes over the
top two 3/8-16 threaded holes in the engine's face. Insert 3/8-16 x 1-1/4 Cap Screw
into a 3/8 Lock Washer followed by a 3/8 WI Washer. Insert into "loop" of one #17 Belt
Guide (90° "hooked" end pointing away from engine) and then into rear 3/8 hole of #56
Baffle engaging Screw in (above) aligned threaded hole in engine face. Insert 3/8-16 x
3/4 Cap Screw in a 3/8 Lock Washer and then a 3/8 WI Washer; insert into remaining
forward 3/8 hole in Baffle and engage threads in engine face - Tighten.
Insert 3/8-16 x 1 Cap Screw into 3/8 Lock Washer, 3/8 WI Washer, and then into "loop"
of second #17 Belt Guide. Screw this assembly into lower rear 3/8-16 threaded hole in
engine's face - keep 90° "hooked" end pointing away from engine. (NOTE: Check Engine
Assembly MD1200, MD1612 & MD1600 drawing for proper assembly of this step.)
26. Install Engine in Engine Compartment of Tractor keeping the Crankshaft on left side.
A. Mount 7 hp Engine to Body's #1E Mount with four 5/16-18 x 1 Cap Screws and 5/16
WI Washers coming up from underside of #1E Mount and engaging four holes in mounting
plate of Engine. Secure above with 5/16 WI Washers and 5/16-18 Locknuts.
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