Mathey Dearman 3SA Saddle Machine - Manual (Page 19)

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7.2.12 Tighten all 3/8‐16 x 1” Hex Head Cap Screws (Figure 4 item 10) and 3/8” Washer (Figure 4 item 14) that hold
the Right Single Bearing Bracket Assembly (Figure 4 item 4 ) in position on the Saddle (Figure 4 item 1) with a
9/16” wrench.
7.2.13 Place the Left Single Bearing Bracket Assembly (Figure 4 item 4) in a vise.
7.2.14 With a 5/32” / 4mm diameter drift punch remove 3/16” x 1 ¼” long Spring Pin (Figure 5 item 11) and 3/16” x
1” long Spring Pin (Figure 5 item 10).
NOTE: Save 3/16” x 1 ¼” long Spring Pin 3/16” x 1” long Spring Pin (Figure 5 item 10) for reuse at a later time.
7.2.15 With a 5/32” allen wrench loosen the Socket Set Screw (Figure 5 item 6) in the Sprocket (Figure 5 item 2) of the
Right Single Bearing Bracket Assembly (Figure 5).
7.2. 16 Remove the Sprocket (Figure 5 item 2) from the axle (Figure 5 item 4) of the Single Bearing Bracket Assembly
(Figure 5).
7.2.17 With a 1/4" / 6mm drift punch drive the Axle (Figure 5 item 4) / Pinion Gear (Figure 5 item 3) assembly out of
the Left Single Bearing Bracket Assembly (Figure 4 item 4).
7.2.18 With a 1/4" / 6mm drift punch drive Axle (Figure 5 item 4) out of Pinion Gear (Figure 5 item 3).
7.2.19 Press the new Axle (Figure 5 item 4) into Pinion Gear (Figure 5 item 3).
Warning: Redrilling of the old Axle will severely weaken the axle
7.2.20 Drill a 3/16” / 4.7mm hole completely through the center of the flange of the Pinion Gear (Figure 5 item 3).
7.2.21 Install the 3/16” x 1” long Spring Pin (Figure 5 item 10) in the 3/16” / 4.7mm hole.
7.2.22 Install the Axle (Figure 5 item 4) / Pinion Gear (Figure 5 item 3) assembly into the Left Single Bearing Bracket
Assembly (Figure 4 item 4).
7.2.23 Place the Sprocket (Figure 5 item 2) on the Axle (Figure 5 item 4) with the hub of the Sprocket facing outward.
7.2.24 Place the Drive Chain (Figure 4 item 15) on the Sprocket (Figure 5 item 2) and the Double Sprocket (Figure 6
item 3) of the Double Bearing Bracket Assembly (Figure 4 item 6).
7.2.25 When placing the Left Single Bearing Bracket Assembly (Figure 4 item 4) in position, rotate the Pinion Gear
(Figure 5 item 3) so the teeth mesh in the teeth of Ring Gear (Figure 4 item 3).
7.2.26 Install the 3/8‐16 x 1” Hex Head Cap Screws (Figure 4 item 10) and 3/8” Washer (Figure 4 item 14) into the Left
Single Bearing Bracket (Figure 4 item 4) and screw into the Saddle (Figure 4 item 1).
7.2.27 There should be a .005” to .007” gap between the Pinion Gear (Figure 5 item 3) and the teeth of Ring Gear
(Figure 4 item 3). Make sure the Pinion Gears (Figure 5 item 3) of the Single Bearing Brackets (Figure 5) are
evenly spaced in the teeth of the Ring Gear (Figure 4 item 3).
7.2.28 Snug the 3/8‐16 x 1” Hex Head Cap Screws (Figure 4 item 10) with a 9/16” wrench.
7.2.29 Tighten the Socket Set Screw (Figure 5 item 6) in the Sprocket (Figure 5 item 2) of the Right Single Bearing
Bracket (Figure 5) with a 5/32” allen wrench.
7.2.30 Rotate the Ring Gear (Figure 4 item 3) clockwise (as viewed from the front of the machine) check the entry of
the Pinion Gear (Figure 5 item3) of the Right and Left Single Bearing Bracket Assemblies (Figure 4 items 4 & 5)
into the Ring Gear (Figure 4 item 3).
7.2.31 Adjust the Pinion Gear (Figure 6 item 3) of the Single Bearing Brackets (Figure 5) as needed so that it enters the
Ring Gear (Figure 5 item 3) without hesitation.
Note: When the Pinion Gears (Figure 5 item 3) of the Right and Left Single Bearing Bracket (Figure 5 item 3)
enters the Ring Gear (Figure 4 item 3) it should not suddenly pull the Ring Gear. As the Pinion Gear (Figure 5
item 3) of the Single Bearing Bracket (Figure 5) leaves the Ring Gear (Figure 5 item 3) it should not suddenly
push the Ring Gear.
7.2.32 Tighten the Hex Head Cap Screws (Figure 4 item 10) on both sides of the Left Single Bearing Bracket
Assembly(Figure 4 item 4) using a 9/16” wrench.
7.2.33 Rotate the Ring Gear (Figure 4 item 3) one (1) full revolution in the clockwise and counterclockwise direction
checking the entry of the Ring Gear (Figure 4 item 3) into the Pinion Gears (Figure 5 item 3) of the Right & Left
Single Bearing Bracket (Figure 5).
Note: The entry of the Pinion Gears into the Ring Gear should be smooth and without hesitation.
Note: When the Pinion Gears (Figure 5 item 3) of the Right and Left Single Bearing Bracket (Figure 5 item 3)
enters the Ring Gear (Figure 4 item 3) it should not suddenly pull the Ring Gear. As the Pinion Gear (Figure 5
item 3) of the Single Bearing Bracket (Figure 5) leaves the Ring Gear (Figure 5 item 3) it should not suddenly
push the Ring Gear.
7.2.34 Reattach both Tie Rod Handles (Figure 4 item 7) from the Single and Double Bearing Bracket Assemblies (Figure
4 items 4, 5 & 6) with the Hex Head Cap Screws (Figure 5 item 10 ) and Hex Nuts Figure 5 item 13) and tighten
with a 1/2" wrench.