GMC 4000 Series Service Manual page 52

Sec. 1
G M C S E R V I C E M A N U A L
Page 45
CONVENTIONAL CAB
ADAPTER ASSEMBLY
BLOWER A N D HEATER
CORE ASSEMBLY
M O TO R
G R O U N D WIRE
HEATER U N IT M O U N T IN G
AIR DISTRIBUTOR
ASSEMBLY
" A IR "
T-2428
HEATER C O N T R O LS
Figure 2 9 — H e a v y D u ly A ir-Flow Heater