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Figure 4-4. Electric motor and compressor assembly, removal and installation. - TM-5-4310-358-140028
Figure 4-5. Compressor components and v-belt drive. - TM-5-4310-358-140030

TM-5-4310-358-14 Compressor Air Reciprocating Electric Motor Driven Reciever Mounted 5 CFM at 175 PSI Model no. HR2-6M-2 Manual
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TM 5-4310-358-14
(5) Install v-belt drive guard and attaching
4-15. V-Belts.
hardware and tighten securely.
a. Inspection.
e. Adjustment.
(1) Make a visual inspection of the belts to
(1) If necessary, adjust the tension as follows:
determine their condition.
(a) Loosen motor mounting screws (fig.
(2) If the belts are worn, frayed or bad,
4-5). It is not necessary to remove the mounting screws.
replace with a new set.
(b) Move  the  motor  away  from
b. Cleaning.
compressor until proper tension is obtained on the v-
belts, para d.(3).
Be sure pulleys are in correct
alignment.
WARNING
(c) Tighten motor mounting bolts to
Dry cleaning solvent, P-D-680, used
secure adjustment.
to
clean
parts
is
potentially
dangerous
to
personnel
and
property.  Use in a well ventilated
CAUTION
area as the fumes are dangerous if
Do not adjust the v-belts too tightly
inhaled.
Avoid  repeated  and
as this will overload motor and
prolonged skin contact. Do not use
compressor bearings. Also check to
near open flame or excessive heat.
be sure motor pulley is square in
relationship to the mounting base
Flash point of solvent is 100 F. 138
and flywheel to avoid binding and
F. (38 C. 59 C.).
excessive wear of the v-belts.
(1) Use a cloth dampened in cleaning solvent,
(2) Install v-belt guard.
P-D-680, to remove oil and dust from the belts.
(2) If the belts have become saturated with oil
4-16. Release Valve Assembly Replacement.
and dirt, replace with a new set.
c. Removal.  Refer to figure 4-5 and remove v-
a. Removal and Disassembly. Refer to figure 4-6
belts as follows:
and remove and disassemble release valve assembly as
(1) Remove attaching hardware and remove
follows:
v-belt drive guard.
Remove release valve body (1, fig. 4-6), spring
(2) Loosen motor mounting bolts and move
(2), ball (3), and plunger (4).
motor towards compressor to loosen v-belt tension.
b. Cleaning, Inspection and Repair.
(3) Remove v-belts.
(1) Clean all parts and wipe dry with a lint free
d. Installation.  Refer to figure 4-5 and install v-
cloth.
belts as follows:
(2) Check the spring (2) for disfiguration, or
(1) Install v-belts on compressor and motor
loss of tension. Replace a defective spring.
pulleys.
(3) Check ball (3), body (1), and plunger (4)
(2) Move  motor  away  from  compressor
for  excessive  wear,  burred  threads  and  general
increasing v-belt tension.  Make sure pulleys are in
condition.
Replace damaged or defective parts as
correct alignment. Tighten motor mounting bolts slightly.
necessary.
(3) Press on the v-belts with your fingers
(4) Replace deteriorated gaskets.
midway between the motor drive pulley and the
c. Reassembly and Installation.
compressor flywheel. Proper v-belt tension is when the
Refer to figure 4-6 and reverse the disassembly
belt deflection is no more than one-half inch.
and removal procedures.
(4) When proper belt tension is obtained
tighten motor mounting bolts securely.
4-8






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