Tools Required; Disconnection And Reconnection Of Wiring Between Cylinder Head Section And Handle Section - Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer Technical Data And Service Manual

10-2. Disconnection and Reconnection of Wiring between Cylinder Head Section and Handle Section

The Model NR 90GC is comprised of three sections, cylinder head section, housing section and handle section.
The wiring between the cylinder head section and the handle section must be disconnected before disassembly
and reassembly of each section. Refer to 10-3, 10-4 and 10-5 for disassembly and reassembly of each section.
Four bolts
Housing section

[Tools required]

Hex. bar wrench (4 mm)
Phillips screwdriver
(a) Disassembly (Fig. 24)
Remove the Hex. Socket Hd. Bolt M5 x 14 [1] and the Washer M5 [2] then open the Top Cover [3]. (Do not
open the Top Cover [3] excessively. Otherwise, it may be broken.)
Disconnect the red cable from Spark Plug (A) [11]. Be sure to hold the black rubber cap at disconnection to
prevent the cable from being damaged. Do not yank the cable. If it is difficult to disconnect the rubber cap
from Spark Plug (A) [11], pry the rubber cap off with a Phillips screwdriver or the like by fitting the tip of the
Phillips screwdriver in the root of the cable outlet of the rubber cap.
Remove the connector from the two wires coming from the Motor [6].
Remove the Hex. Socket Hd. Bolts M5 x 20 [13] and remove the cylinder head section from the main body.
Cylinder head section
Hanging mechanism
Two bolts
Handle section
Fig. 23
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Spark plug cable
(One thick red cable)
Wiring connected to
the motor. Connector
is provided.
(One thin red wire and
one thin black wire)