Table 1. Time Standard Continued
Location and service
Man/Hours
Removal and Replacement
Man/Hours
7563
SHAFTS
7528 SCREENS AND ATTACHING
Shaft assemblies (pitman out of
PARTS
unit)
Screen assembly, vibrating
(includes removal and installation
(includes removal and installation
of seals, sleeve nuts, bearings.).. 9.2
of guard and belts, lowering of
Bearings and seals (pitman out of
feeder assembly, and rubber
unit)
mounting.) ...................................... 10.0
(includes removal and installation
Screens
of sleeve nuts and adapter. sleeve.) 3.1
(includes removal and installation
Wheel, balance
of rubber deflector.) .......................... 3.0
(includes removal and installation
Bar, grizzley ......................................... 0.2
of platforms, ladders, framework,
7529 ECCENTRIC OR GYRATOR SHAFT
main drive belts, and guard.)........... 8.5
Shaft assembly
7525
SCREENING BASE, BOX
(includes removal and installation
Box; plates
of guard and belts, pulley,
(includes removal and installation
balance wheels, seals, plates and
of guards and belts, rubber
bearings.) ..................................... 7.8
mounts, grizzley bars, shaft
Bearings
assembly, liners, braces and
(includes removal and installation
crossmembers.) ....................... 19.7
of guard and belts, pulley, balance
Rail, center and crossmember, feed
wheels, seals, and plates.) ........... 7.3
(includes removal and installation
Guard and pulley .............................. 0.7
of screen, grizzley bars, and
Wheel, balance ................................. 1.7
longitudinal bars.) ...................... 4.8
76
FIRE FIGHTING EQUIPMENT
Mounting, rubber ............................ 0.5
7603 FIRE EXTINGUISHER
Deflector, rubber ............................ 0.4
Extinguisher, fire ............................... 0.2
Underhopper
(includes removal and installation
of diverter box.) ......................... 8.0
Box, divert; chute; gate .................. 2.0
clearances, and the maximum allowable wear and
m.
Engine Repair and Replacement Standards.
clearances for the Jaw Crusher.
Table 2
lists manufacturer's sizes, tolerances,
Table 2. Engine Repair and Replacement Standards.
Desired
Maximum
Maximum
Manufacturer's
clearance
allowable
allowable
dimensions and
wear
clearance
tolerance in
inches
Minimum
Maximum
Minimum
Maximum
Valve Guide
Length
Intake ............................................................................. ........... 4.718
Exhaust ....................................................................... ........... 3.812
Outside diameter .................................................. 0.8755......... 0.8765
Stem hole diameter ..................................
Intake................................................................. 0.4985......... 0.4990 ...................... ..................... ......... 0.0020
Exhaust ............................................................. 0.4985......... 0.4995 ...................... ..................... ......... 0.0020
Distance-cylinder head contact face to
top of guide
Intake .......................................................................... ........... 2.000
Exhaust ....................................................................... ........... 2.875
Valves Intake
Length .................................................................. 8.3785......... 8.3995
Stem diameter....................................................... 0.4969......... 0.4977
Head diameter ........................................................2.322........... 2.832
AGO 8456
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