Primus DAM 9 Service Manual Download

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Section 5 Service Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the dryer is properly grounded.

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WARNING

(9) Disengage belt from motor and idler

pulleys. Refer to Figure 48.

NOTE: When reinstalling belt, be sure belt is
properly installed on motor and idler pulleys and is
on the correct side of the idler lever. Refer to
Figure 47. Belt must be positioned around center
section of cylinder approximately three inches
ahead of rear rib on cylinder with the ribbed
surface of the belt against the cylinder. Refer to
Figure 57. After installing belt, manually rotate
cylinder counterclockwise to check that belt is
properly aligned.

(10) Remove four screws holding front

bulkhead to dryer. Refer to Figure 26.

NOTE: When reassembling the front bulkhead to
the cabinet, hold glides in position with finger tips
on the edges of glides. Once bulkhead is in place,
inspect the glide position with a mirror to ensure the
glides are aligned with the cylinder, making sure the
tabs are visible. Refer to Figure 54.

IMPORTANT: During reinstallation of front
bulkhead, be sure that air duct is properly
positioned with flange inside the seal on exhaust fan
cover. Refer to Figure 44. If the duct or seal is
installed improperly, the airflow through the dryer
will be reduced which can cause fire and dryer
malfunction.

(11) Remove thermostat. Refer to Figure 43.
(12) Remove ground screw and green ground

wire from wire harness and base of dryer.
Refer to Figure 44.

(13) Remove wires connecting wire harness to

motor. Refer to Figure 44.

(14) For Gas Models:

(a.) Disconnect igniter wires at disconnect

blocks, sensor wires from sensor
terminals (Refer to Figure 39), and
wires from gas valve coils at the quick
disconnect blocks. Refer to Figure 43.

(b.) Remove screw from right side of

burner housing holding burner tube in
place. Refer to Figure 43.

(c.) Gently move burner tube toward rear

of dryer to disengage tab from slot on
left side of burner housing. Refer to
Figure 39.

(d.) Carefully rotate burner tube and

igniter counterclockwise so tab is at
the 8 o’clock position.

(e.) Move air shutter end of burner tube

slightly to right and CAREFULLY
remove burner tube and igniter
assembly out through front of dryer.

NOTE: The igniter is very fragile. Be careful not to
damage it during removal.

(f.) Remove screw holding burner

housing to heat shroud. Refer to
Figure 39.

(g.) Remove screw holding front of burner

housing to dryer base and remove
housing out through front of dryer.
Refer to Figure 43.

(h.) Remove four screws holding shroud

to heater box. Remove shroud out
through front of dryer. Refer to
Figure 39.

Electric Models:

(a.) Remove two screws holding element

and plate to heater box, then pull
element down and away from heater
box. Refer to Figure 43.

(b.) While supporting bulkhead, remove

screws holding bulkhead to rear of
dryer cabinet, and remove assembly
out of dryer. Refer to Figure 58.

To reduce the risk of serious injury or
death by carbon monoxide and other
gases in gas dryers, carefully read and
follow all instructions given in this section.

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WARNING