Tuthill T650 - T650;T950 H Assembly Instructions - Stage Two

10
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE TWO
The numbers in parentheses correspond with the drawing on the facing page.
8. INSTALL HOUSING
8.1. Install dowels (2) in housing.
8.2. Lower housing (3) onto rotors.
8.3. Tighten housing bolts (4).
8.4. TAKE A MEASURE… Visually check rotor-to-housing clearance to make sure rotor shoulder is above housing
bore on inlet end.
9. INSTALL SEALS AND BEARINGS - HOUSING
9.1. Install seals (5) so that right seal (red) goes on female rotor and left seal (blue) presses on male rotor.
9.2. Install roller bearings (6): it is important that the numbers and flange are face out.
9.3. Install retainer (7) and torque cap screws (8) to 108 in-lbs. The female bearing retainer has the tube clamp.
10. INSTALL FIRST TIMING GEAR
10.1. Install gear key (13).
10.2. … check thickness of spacer. Install gear spacer (12).
10.3. Install small gear (18) on male rotor.
11. INSTALL OIL AND TUBING SYSTEM FOR HOUSING (9)(10)(11).
12. INSTALL SECOND TIMING GEAR AND HUB
12.1. Install gear key (13).
12.2. TAKE A MEASURE… check thickness of spacer. Install gear spacer (12).
12.3. Install two-piece large gear (14)(15) so that ½ of the bolthole is showing on the right side. Install on female rotor with
key.
12.4. TAKE A MEASURE… Install .002 shim between any lobes. Check all lobes for tightest lobe and set it at .001
clearances. Check interlobe clearance and record.
12.5. Install timing gear bolts (16)(17).
12.6. Install timing gear retainer washer (19) and cap screw (20).
12.7. Bend locking tabs on rotor nuts.
Assembly Instructions are continued on page 12.