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8.
Caution: It is very important that the Planet Gears and Ring Gear (89) be timed when the Gear Frame Assembly is in-
serted into the Ring Gear. Time the gearing as follows:
a. Align the bolt holes in the Ring Gear and Brake Housing (9 1) and press in the Ring Gear.
b. Stand the Ring Gear and Housing upright.
c. Align the arrows and scribe lines on the faces of the Planet Gears in a straight line as illustrated below.
(Dwg. TPD35-I)
d. Maintain this alignment, insert the Gear Frame Assembly into the Ring Gear and simultaneously press the Planet
Frame Bearing into the Brake Housing.
e. Make certain the Gasket (90) is in place and install the assembled Planet Frame, Ring Gear and Brake Housing over
the Motor Shaft and into the Housing. The Motor Shaft must turn freely by hand. The gear train and Chain Wheel
must rotate smoothly as the shaft is turned.
9. Install the Brake Driver (93) and Brake Driver Retaining Ring (67).
10. Stack the brake components over the Brake Driver and into the Brake Housing as illustrated on Page 16. Align the
notches in the Brake Plates with the bolt holes in the Brake Housing (9 1) and main Housing (1).
11. Assemble the Brake Spring and Piston Housing Assembly as follows:
a. Apply O-ring lubricant to the Large Seal (100) and Small Seal (101) and install them in their respective grooves on
the Brake Piston.
b. Taking care not to cut the Seals (100 and l0l), slide the Piston into the Brake Spring and Piston Housing (96).
c. Place the Spring and Piston Housing (96) on a bench, three spring holes facing upward.
d. Place a Spring (97) in each of the holes and place the Pressure Plate (98), stud first, over the Springs and into the
Brake Piston.
e. Hold the Plate and Housing together and flip the Housing over with the threaded stud up.
f. Press down on the Brake Spring and Piston Housing to force the threaded stud through the Piston. While maintain-
ing this position, tighten the Piston Nut (102) to 50 to 70 in-lb (5.65 to 7.9 1 N m) torque. Note: Make certain the
Piston is fully inserted through the Spring and Piston Housing and that it is in full contact with the Pressure Plate.
g. Install the Plate (103) using the Plate Screws (104).
h. Align the bolt holes in the Brake Spring Housing with those in the Housing (1) and install the Lock Washers (106)
and Shoulder Bolts (105).
13