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FIGURE 24
7) Using the applicable wrench, remove the cylinder
head, PN MDF15-0150 or MDF35-0150, from the
cylinder assembly. The assembly incorporates a right
hand thread configuration. This sequence will allow
direct access to the following components: PN MDF15-
0090 or MDF35-0090 distribution valve, PN MDF15-
0100 or MDF35-0100 valve distribution disc, PN
MDF15-0130 or MDF35-0130 distribution gauge, PN
MDF15-0120 or MDF35-0120 disc, PN MDF15-0110 or
MDF35-0110 distribution valve cover, PN MDF15-0240
roll pin (fits MDF35 also) and PN MDF15-0090 or
MDF35-0080 piston. Clean all components with an
appropriate solvent. Inspect each component for
damage and/or wear.
OBSERVE
ALL
PRECAUTIONS FOR THE SOLVENT.
8) Perform the following inspections:
a) Inspect the PN MDF15-0140 (MDF15) or MDF35-
0090 (MDF35) valve for distortion or external marks on
its surfaces. Replace the valve with a factory approved
replacement part only if signs of distortion and/or
external marks are present.
b) Inspect the PN MDF15-0090 (MDF15) or MDF35-
0080 (MDF35) piston for excessive wear and external
marks. Measure the diameter of the piston and replace
with a factory approved replacement part only if this
MDF SERIES LONG REACH AIR TOOLS FORM GOM6019801, VERSION 1.0, AUTHORIZATION: DVR, PAGE: 25
APPLICABLE
SAFETY
dimension is less than 0.7155 (18.1737) for the MDF15
and 0.8625 inch (21.910 mm) for the MDF35 Long
Reach Air Tool.
c) The tool receiver bushing, PN MDF15-0050
(MDF15) or MDF35-0040 (MDF35), must be free of
excessive wear around each corner of the internal
hexagon configuration. For the MDF15, measure the
minor diameter of the receiver and replace with a
factory approved replacement part only if this
dimension is greater than 0.391 inch (9.931 mm). For
the MDF35 Long Reach Air Tool, measure the minor
diameter of the receiver and replace with a factory
approved replacement part only if this dimension is
greater than 0.6102 inch (15.5 mm). The tool receiver
of the MDF15 can be removed from the cylinder
assembly with a punch 0.485 inch (12.319 mm)
diameter x 5 inch (127 mm) long (PN MDF15-7020).
The tool receiver of the MDF35 can be removed from
the cylinder assembly with a punch 0.700 inch (17.78
mm) diameter x 6-1/2 inch (165 mm) long (PN MDF35-
7010). FIGURE 25.
FIGURE 25
WEAR
SAFETY EYEGLASSES AND
APPROPRIATE
SAFETY
REMOVING/INSTALLING THE TOOL RECEIVER OR
PERFORMING ANY WORK WITH AN ARBOR
PRESS. CAUTION ALL ONLOOKERS ABOUT THE
POSSIBILITY OF FLYING DEBRIS AND PERSONAL
INJURY.
9) The assembly procedure for the specific
components follows the disassembly procedure in
reverse order. It is important that the roll pins PN
OTHER
APPAREL
WHEN
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