Refrigerant Lines And Routing - Piper Dakota Maintenance Manual

3. Connect electrical lead from field assembly.
The compressor shaft must be clean and free from burrs.
4. Slide pulley assembly over field assembly and onto crankshaft, now tighten the field assembly to a
torque of 85 to 120 inch-pounds. Secure pulley assembly with washer and new self-locking capscrew.
Tighten capscrew to a torque of 180 to 240 inch-pounds.
If clutch is not engaged while tightening capscrew, insert a
spanner into holes provided in armature face.
5. Spin pulley by hand to check for any interference between field and rotor pulley assemblies. A rubbing
noise can be heard as pulley rotates if there is interference. Rotor pulley assembly must be removed
and mounting of field assembly adjusted until interference is eliminated.

REFRIGERANT LINES AND ROUTING

Refrigerant lines in this aircraft are flexible high pressure hoses and should be handled accordingly. Hoses
in power plant area are routed so as to provide maximum protection from heat and abrasion. They couple at
firewall to hoses routed through two inboard, external hat section on bottom of fuselage, up through floor to
condenser and evaporator in tail cone. Discharge is in right hand section and suction in left.
Before any hose couplings are uncoupled, discharge system
completely. (See Discharging.)
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
Figure 21-12. Magnetic Clutch
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1G21
21 - 53 - 00
Page - 21 - 31
Reissued: August 1, 1986