TM-9-2815-200-35
ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)
TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
TM-9-2815-200-35 - Page 229 of 779
Remove
1. Remove self-locking nut and machine screw (A)
attaching large and small cushioned clamps from in-
termediate crankcase breather tube and fuel return
hose.
2. Disconnect fuel return hose (B) at check valve and
remove hose.
3. Loosen breather tube hose clamps (C).
4. Remove two bolts and lock washers (D) attaching
crankcase breather tube tee to rear fan drive and ac-
cessory drive housing. Remove tube tee and hose from
intermediate crankcase breather tube.
Remove and
discard tube tee gasket.
5. Remove fuel check valve (E).
Install
1. Install fuel check valve (E).
2. Install a new hose on tube tee. Connect tube tee to
intermediate crankcase breather tube. Position new
gasket and install breather tube tee to rear fan and
accessory drive housing and secure with two bolts and
lock washers (D).
3. Tighten breather tube hose clamps (C).
4. Position fuel return hose (B) and connect to check
valve.
5. Position large and small cushioned clamp and install a
machine screw and self-locking nut (A) securing large
and small cushioned clamps at intermediate crankcas
e
breather tube and fuel return hose.
Figure 5-71. Removing or installing fuel
return hose and crankcase breather tube
tee -engines prior to rerouting
of fuel return hose.
Disconnect
1. Remove three self-locking nuts and machine screws
(A) attaching three small cushioned clamps on elec-
trical lead to three large cushioned clamps on in-
termediate crankcase breather tube.
2. Remove three large cushioned clamps (B) from front
and rear intermediate crankcase breather tubes and
front intermediate crankcase breather tube.
3. Remove self-locking nut and bolt (C) securing
breather tube clamp to bracket.
4. Loosen two hose clamps (D) and remove rear in-
termediate crankcase breather tube. Remove cushioned
clamp and hose from tube.
5. Disconnect fuel injection pump electrical lead (E)
from injection pump.
Connect
1. Connect fuel injection pump electrical lead (E) to fuel
injection pump.
2. Install cushioned clamp and hose on rear intermediate
crankcase breather tube and position tube. Tighten two
hose clamps (D).
3. Install bolt and self-locking nut (C) securing breather
tube clamp to bracket.
4. Install one large cushioned clamp (B) on rear in-
termediate breather tube and two large cushioned
clamps (B) on front intermediate breather tube.
5. Install three machine screws and self-locking nuts (A)
securing three small cushioned clamps on the electrical
lead to the three large cushioned clamps on the crank-
case front and rear intermediate breather tubes.
Figure 5-72. Disconnecting or connecting
intermediate crankcase breather tubes at
fuel injection pump clamp.
5-43
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