Urschel COMITROL 1700, Instruction Manual

Page: 122 / 233

REASSEMBLY
1. Install lower retaining ring/wear ring into
microcut head. If retaining ring has a face
seal in need of repair, nose seal element
and “O” ring can be replaced without re-
moving seal body (Figure 38). All blades in
microcut head must be properly seated and
resting against backing ring before retain-
ing ring is installed, see “Reassembly”,
page 68. Turn microcut head upside down.
Back off four lock nuts holding wear ring 1/2
turn each to ease retaining ring installation.
Align recesses in retaining ring with holes in
base of microcut head and push retaining
ring in until fully seated (Figure 39). Tight-
en wear ring fasteners.
2. Install microcut head. Position on spindle
flange and fasten securely.
3. Install impeller on impeller shaft and tight-
en securely. Release motor brake (see Fig-
ure 34, page 46) and rotate impeller back-
wards (counterclockwise) several times by
hand to make certain there is no metal to
metal contact.
4. Install upper enclosure and align safety
switch sensor and actuator.
5. Install feed adapter with wear ring and
secure with hand knobs. Some assemblies
also have a separate funnel hopper.
MAINTENANCE
Feed Assembly, Microcut Head
49
Figure 38— Replacing nose seal in lower retaining ring.
(1) Nose Seal, (2) “O” Ring, (3) Seal Body, (4) Wear
Ring
Figure 39 — Installing lower retaining ring in microcut
head. (1) Lower Retaining Ring, (2) Recess
1
1
2
2
4
3