MD Helicopters CSP-900RMM-2, Техническое обслуживание и ремонт

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CSP − 900RMM − 2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 604
Revision 25
71-00-00
5. Engine to Transmission Alignment
(Ref. Figure 601)
Consumable Materials
(Ref. CSP − SPM)
Item Nomenclature
C702 Lockwire
Special Tools
(Ref. CSP − SPM)
Item Nomenclature
T401 Inspection Gauge (Engine Alignment)
Axial displacement may cause excessive
oil leakage from input pinion lip seal.
NOTE:
This task is typical for left or right hand
engine.
Proper alignment provides zero to posi­
tive clearance between flanges to install
input drive shaft in tension.
(1). Attach engine inspection shaft (1) to
engine output flange with bolts.
(2). Attach transmission inspection shaft (2)
to transmission input flange with bolts.
(3). To adjust engine mount support rods,
remove lockwire, loosen jam nuts, and
rotate support rod with wrench.
(4). Perform engine to transmission
concentricity inspection.
NOTE:
Do not force inspection slider over en­
gine inspection shaft.
(a). Slide inspection slider (3) over the
engine inspection shaft.
(b). If inspection slider will not fit over
the engine inspection shaft, adjust
tripod and bipod engine mount aft
support rods and rear mount support
rod as necessary to achieve fit.
(c). Retract inspection slider from engine
inspection shaft.
(5). Perform engine to transmission axial
distance inspection.
Ensure transmission input
flange is fully AFT.
(a). Pull transmission input flange
counter-clockwise to its fully aft
position to remove end play.
(b). Insert Go / No Go gauge (4) between
engine and transmission inspection
shafts. Repeat inspection if error in
measurement is suspected.
(c). Adjust tripod and bipod engine
mount forward support rods until GO
surface fits snugly between engine
and transmission inspection shafts.
(6). Repeat engine to transmission concen­
tricity inspection and axial distance
inspection until criteria for both are
met.
(7). When alignment is complete, torque
jam nuts and safety jam nuts to
positive index locking device with
lockwire (C702).
9G71-007
1
2
3
4
1. ENGINE INSPECTION SHAFT
2. TRANSMISSION INSPECTION SHAFT
3. INSPECTION SLIDER
4. GO / NO GO GAUGE
Figure 601. Inspection Gauge (Engine
Alignment)
CAUTION
CAUTION