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Hitachi H 60MA Repair Manual
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Hitachi H 60MA Repair Manual

Hitachi H 60MA Repair Manual

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Download this manual See also: Operation Manual & Safety Instructions, Instruction Manual
1. REPAIR GUIDE
1-1. Precautions and Suggestions for Disassembly and Reassembly of the Main Body
The numbers in [Bold] and <bold> correspond to the item numbers in the Parts List and exploded
assembly diagrams. ([ ]: H 60MA and H 60MB, < >: H 60MB only)
1-1-1. Disassembly
• Piston and striker disassembly
Remove the Hex. Socket Hd. (W/Flange) Bolt M8 [30] fixing the Cylinder Case [29], and disassemble
the Cylinder Case [29] from the Crank Case [38]. As the Piston [35] remains in the Crank Case [38]
side, remove the Retaining Ring [37] to remove the Connecting Rod [36] from the Crank Shaft [43]. The
Striker [32] can be removed by tapping the Cylinder Case [29] lightly with a plastic hammer. If it does
not come out easily, push the disassembled Piston [35] with the Connecting Rod [36] back into the
Cylinder, and pull them apart again quickly. The Striker can come out at the same time.
• First gear and crank shaft disassembly
Remove the grease from the Connecting Rod [36] side and the First Gear [54] side of the Crank Case
[38]. Remove the two Seal Lock Hex. Socket Hd. Bolts M5 [45] fixing the Bearing Cover [46]. Then
place the Connecting Rod [36] side of the Crank Case [38] downward on a workbench and apply
pressure on the end surface of the Crank Shaft [43] with a hand press to remove the First Gear [54] and
the Crank Shaft [43] (Fig. 1). Before removing them, make sure that the two Seal Lock Hex. Socket Hd.
Bolts M5 [45] fixing the Bearing Cover [46] are removed.
Crank case
Bearing cover
• Retainer disassembly (See Figs. 2 and 3.)
Pull Grip (A) [2] fully in the arrow direction as
shown in Fig. 2 and remove the Front Cap [1]
(since the Front Cap [1] is made of rubber and
engaged firmly with Grip (A), pull it strongly to
remove). This allows Grip (A) [2] to be
separated from the Retainer Sleeve [19].
MODEL
Crank shaft
H 60MA, H 60MB
Apply pressure on the end
surface of the crank shaft
with a hand press.
Fig. 1
Front cap
--- 1 ---
First gear
Workbench
Grip (A)
Fig. 2

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Summary of Contents for Hitachi H 60MA

  • Page 1 1-1. Precautions and Suggestions for Disassembly and Reassembly of the Main Body The numbers in [Bold] and <bold> correspond to the item numbers in the Parts List and exploded assembly diagrams. ([ ]: H 60MA and H 60MB, < >: H 60MB only) 1-1-1. Disassembly •...
  • Page 2 Needle holder (A) Retaining ring Washer (C) Needle Front cover Ball holder Spring (B) (2 pcs.) Washer (D) Ring Spring (A) Retainer Retainer Grip (B) Steel ball sleeve damper Needle (4 pcs.) holder (B) Fig. 3 Remove the Ring [3] by means of a snap ring remover, then Washer (D) [4], Washer (C) [5], the Retainer Damper [6], Needle Holder (A) [7], Needle Holder (B) [9], the two Needles [8] and Spring (A) [10] can be removed from the Retainer Sleeve [19].
  • Page 3 No. 29 to Needle Bearing (A) [55], the pinion portion of the Armature Ass'y [65], the Steel Ball [16] and the Needle [8]. Seal 40 g of the Hitachi Motor Grease No. 29 into the Crank Case [38] (First Gear [54] side).
  • Page 4 173.6 334.3 in-lbs) • • (Hex. socket hd. bolts (w/flange) M8 x 35) 1-1-5. Internal wiring • Wiring diagram of Model H 60MA (products without control circuit ass'y) (1) For products with noise suppressor Stator Connector Brown Plug Connector...
  • Page 5 (2) For products without noise suppressor Stator Black Plug Armature White Connector Stator Fig. 7 • Wiring diagram of Model H 60MB (products with control circuit ass'y) Stator Brown (Black) Plug Controller circuit Armature Blue (White) Stator Pillar terminal Leadwire Fig.
  • Page 6 • Schematic diagram of Model H 60MA (products without control circuit ass'y) Switch Handle (A) Switch Connector Pillar terminal Internal wire Noise Connector Internal wire holder Cord Noise suppressor Stator internal wire Noise suppressor Internal wire internal wire holder Housing ass'y...
  • Page 7 • Schematic diagram of Model H 60MB (products with control circuit ass'y) Handle (A) Switch Sleeve Stator ass'y 14 x 16 hole Control circuit ass'y internal Armature ass'y Pillar terminal wire Internal wire Stator internal wire 9 x 10 hole Cord Internal wire holder...
  • Page 8 • Wiring of control circuit ass'y Put two internal wires of the Stator Ass'y <68> and an internal wire of the Internal Wire <87> (grounding wire) through the 9 10 hole of Case (B) <85>. Insert the two internal wires of the Stator Ass'y <68> into the two tabs at the upper portion of the Controller Circuit <86>...

  • Page 9: Standard Repair Time (Unit) Schedules

    2. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL 60 min Fixed Work Flow H 60MA H 60MB Housing Ass'y Stator Ass’y Gear Cover Switch (B) Ass’y Cord Needle Bearing (A) Armature Ass’y BB (6201DD) General Assembly Handle (A) Crank Shaft...

This manual is also suitable for:

H 60mb