Section I. 1. VACUUM BLOWER ASSEMBLY (MODEL 1969M)

TM 5-3610-220-14

m. Fan Motor (3-90-8184).

the receptacle housing.

(1)

Removal.

(d) Remove housing.

(a) Tag and disconnect wiring.

(2)

Installation.

(b) Remove the fan motor by inserting a

screwdriver through the fan guard and unscrew the two

(a) Install the five pin female connector into

screws that secure the fan motor to the front mounting

the receptacle housing.

bracket.

(b) Install retainer.

blades attached.

and lockwashers.

(2)

Installation.

l. Timer Receptacle (5278).

(a) Install the fan motor in position on the

(1)

Removal.

front mounting bracket and line up mounting holes in fan

motor to those in the mounting bracket. Secure fan motor to

(a) Tag and disconnect wiring.

bracket with two screws.

(b) Remove two

screws,

nuts

and

(b) Connect wires, noting wire color and

lockwashers and remove receptacle.

order as tagged at disassembly.

(2)

Installation.

Page 6-1. Chapter 6, after Section I, add Section I. 1 as

(a) Place receptacle in position and secure

follows:

with two screws, nuts and lockwashers.

(b) Connect wiring noting wire color and

order as tagged.

Section I. 1. VACUUM BLOWER ASSEMBLY (MODEL 1969M)

6-4.1. Description.

d. Remove vacuum hose (10).

(1)

Loosen clamp screw (8) and remove clamp

Two vacuum blower Assemblies, Spencer Model VB-007S-D,

(9).

are mounted side by side at the copyboard end of the camera.

One vacuum blower assembly provides suction at the

(2)

Pull hose free from blower.

copyboard and the other provides suction at the vacuum back.

The inlet of the blower assembly is connected to the

copyboard by a flexible hose thus forcing all intaken air to be

e. Remove the blower assembly from the camera.

drawn through the copyboard.

The other assembly is

similarly connected to the vacuum back of the camera.

6-4.3. Disassembly.

6-4.2. Removal.

CAUTION

Remove the stator assembly with

a. Remove four mounting bolts (1, fig. 6-2.1)

care. Do not damage stator winding.

flatwashers (2), and lock washers (3), that secure the blower

Keep all parts clean.

Do not

to the camera base.

overtighten bolts and screws.

b. Disconnect electrical power line (5).

NOTE

(1)

Remove screw (6) from motor junction box

Shims are used to adjust the gap

(7).

between the impeller and casing

when disassembling, take care to

(2)

Tag wires noting order for reassembly.

note the quantity and location of each

(3)

Remove four wire screws and disconnect

shim as they must be replaced in the

wires.

same position to insure proper

balance.

c. Disconnect conduit nut and remove conduit and

wiring from motor.