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MAINTENANCE
Crusader
MC-8
[_ .. _cE===4=..,.=52==~-o-ArE_N_ov_e_mb_er_,
_l
9_74~]
MANUAL
SPECIFICATIONS
AIR COMPRESSOR
Make .......................................................... Bendix Westinghouse
Model .................................................................. Tu Flo 600
Number (STD.) .............................................................. 280369
Number (Optional) .......................................................... 282457
Capacity (at 1250 RPM) ........................................................ 14.5
INLET VAL VE SEAT
Worn Groove Not to Exceed ..................................... If grooved, replace
DISCHARGE VALVE SEAT
Worn Groove Not to Exceed ........................ , ........ Discharge Valve Travel
not to Exceed .050
Piston Ring Gap (In Cylinder) ................................. 005 min. to .015 max.
Piston Ring Clearance (In groove) ........................... 0015 min. to .0035 max.
Narrow Ring ................................................ 002 min. to .004 max.
Wide Ring ............................................... 0035 min. to .0055 max.
Clearance between Piston and Cylinder Wall ................ Cat Iron (.0020 to .0035)
Cylinder Bores
Max.
allowable out-of-round . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .002
Max.
allowable Taper ......................................................... 003
Crankshaft Seal Ring Gap (In Crankshaft) ........................ 000" to .005" when
set in .998" Dia. Gage
Crankshaft Journal Max. (Out-of-Round)
................................... 003
Clearance between connecting rod
bushing and Piston Pin (Ream)
Max. allowable Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0002 to .0007
Dis~harge Valve Travel with new Valves,
Sprmgs, and cap nuts -
Between . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .030 to .046
Clearance Between Connecting Rod
.
Bearing and Crank Shaft Journal (After Rebuild) ............. 0003 min. to .0021 max.
Inlet Valve Spring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236126
Free Height ................................................................ 29/64
Height under load of . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 .3 oz. max., 2. 7 oz. min. at 3/8"
Unloader Valve Spring ...................................................... 239972
Free Height .................................................................... 3/4
Height under load of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l lb. 6 oz. 45/64
Discharge Valve Spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210468
Free Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7 /64
Height Under Load Of. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.072 at 25 lbs. to 75 lbs.
GOVERNOR
Make .......................................................... Bendix Westinghouse
Model ......................................................................... D-2
Cut-In Pressure ........................................................ 95-105 P.S.I.
Cut-Out Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115-118 P .S.I. max.
Exhaust valve Travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .060 to .093"
Inlet Valve Travel. ........................................................ 030-.040"
BRAKE CHAMBERS
FRONT
Make.....................................
Bendix
Westinghouse
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1/4
Spring Force at O Stroke... . . . . . . . . . . . . . . . .
30-3/4
Spring Force Increase per
Inch of Stroke ............................ .
Maximum Stroke .......................... .
Minimum Stroke (with
brake adjusted) ........................... .
Effective Diaphragm Area ................. .
8
2-1 /4
1-3/4
24
REAR
Bendix
Westinghouse
30
8-1/8
39
5
3
1-1
/2
30
TRAILING
Bendix
Westinghouse
12
5-21/32
12-1 /4
2-1 /2
1-3/4
1-3/8
12
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