Maintenance Standards - DeWalt DW168F Manual

MaIntenanCe stanDaRDs

paRT ITEM
EnGInE Cylinder compression
CylInDER Sleeve I.D.
CylInDER hEaD warpage
pIsTon Skirt o.D.
Piston-to-cylinder
clearance
Piston-to-piston pin
bore clearance
Piston Pin bore I.D.
Pin o.D.
pIsTon RInGs Ring side clearance
Ring,top
Ring, Compression
Ring assy, oil
Ring end gap
Ring width
Ring,top
Ring, Compression
Ring assy, oil
ConnECTInG RoD Small end I.D.
Big end I.D.
Big end oil clearance
Big end side clearance
CRankshaFT Crankshaft o.D.
ValVEs Valve clearance
In
EX
Stem o.D.
In
EX
guide I.D. In/EX
Stem clearance
In
EX
Seat width
Spring free length
* unless otherwise noted
DW168
*sERVICE lIMIT
*sTanDaRD (MM)
(MM)
50 – 90 psi -
68.015~68.025 68.156
0 0.10
67.975~67.985 67.85
0.030~0.050 0.12
0.004~0.016 0.08
18.002~18.008 18.042
17.992~17.998 17.94
0.08~0.12 0.10
0.07~0.11 0.10
0.02~0.16 0.15
0.15~0.35 1.0
1.420~1.440 1.3
1.420~1.440 1.3
2.37~2.49 2.3
18.011~18.022 18.06
30.02~30.03 30.06
0.030~0.055 0.1
0.95~1.45 1.85
29.975~29.990 29.92
0.10~0.15 -
0.20~0.25 -
5.468~5.48 5.318
5.418~5.44 5.275
5.500~5.512 5.572
0.020~0.044 0.1
0.060~0.084 0.12
0.7~0.9 2.0
30~31 29.0
12
DW177
*sERVICE lIMIT
*sTanDaRD (MM)
(MM)
60 – 100 psi -
77.02~77.03 77.179
0 0.10
76.970~76.980 76.85
0.040~0.060 0.1
0.004~0.016 0.08
18.002~18.008 18.042
17.992~17.998 17.95
0.02~0.06 0.15
0.02~0.06 0.15
0.02~0.16 0.15
0.20~0.35 1.0
1.97~1.99 1.75
1.97~1.99 1.75
2.77~2.79 2.5
18.011~18.022 18.06
33.02~33.03 33.06
0.029~0.055 0.1
0.55~1.25 1.65
32.975~32.991 32.92
0.10~0.15 -
0.20~0.25 -
6.568~6.580 6.44
6.545~6.560 6.40
6.600~6.615 6.66
0.020~0.070 0.11
0.040~0.070 0.15
0.8~1.0 2.0
38.5~39.5 37.5
DW188
*sERVICE
*sTanDaRD (MM)
lIMIT(MM)
60 – 100 psi -
88.015~88.025 88.195
0 0.10
87.970~87.980 87.85
0.045~0.065 0.1
0.004~0.016 0.08
20.002~20.008 20.042
19.992~19.998 19.94
0.02~0.06 0.15
0.02~0.06 0.15
0.04~0.19 0.15
0.20~0.40 1.0
1.97~1.99 1.75
1.97~1.99 1.75
2.65~2.78 2.5
20.011~20.022 20.06
36.02~36.03 36.06
0.029~0.064 0.1
0.55~1.25 1.65
35.966~35.991 35.92
0.10~0.15 -
0.20~0.25 -
6.568~6.580 6.44
6.545~6.560 6.40
6.600~6.615 6.66
0.020~0.070 0.11
0.020~0.070 0.15
0.7~0.9 2.0
38.5~39.5 37.5