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9. REPAIR GUIDE
The procedures and the precautions in disassembly and reassembly are described below.
The [bold] numbers correspond to the item numbers in the Parts List and the exploded assembly diagram of the
Model WR 14VB.
9-1. Disassembly
(1) Removal of the hammer case assembly
(a) Removal of the Hammer Case Ass'y [3]
Remove the four Seal Lock Hex. Socket Hd. Bolts M5 x 40 [2]. Supporting the Hammer Case Ass'y [3], tap
the tip of the Anvil [6] with a wooden hammer to remove the Hammer Case Ass'y [3]. Remove Gasket (A)
[20] from between the Hammer Case Ass'y [3] and the Inner Cover [21].
(b) Removal of the Anvil [6]
Remove the Hammer Case Ass'y [3]. Then the Anvil [6] can be removed from the bearing portion of the
Hammer Case Ass'y [3].
(c) Removal of the Ring Gear [18]
Tap the end surface of the Hammer Case Ass'y [3] with a wooden hammer to remove the Ring Gear [18].
If the Ring Gear [18] cannot be removed, warm up the Hammer Case Ass'y [3] then tap it with a wooden
hammer to remove the Ring Gear [18].
(2) Removal of the Spring [11]
Push the click of the Hammer [8] with a hand press and keep it at the position where the Spring [11] is
compressed fully. Remove the two Steel Balls D6.35 [7] from the steel ball guide at the cam portion of the
Spindle [16] and the Hammer [8] with a flat-blade screwdriver. Then release the hand press and remove the
Hammer [8] from the Spindle [16] to remove the Spring [11]. Be careful not to lose the twenty-nine Steel Balls
D3.97 [9] and Washer (B) [10] mounted between the Hammer [8] and the Spring [11] during disassembly.
[1]
[2]
[3]
Spindle
Hammer
--- 13 ---
[6]
[18]
[20]
[21]
Fig. 3
Hammer click
Spindle cam top
Steel ball
Steel ball guide
Fig. 4
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