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R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Pump Section (cont.)
ASSEMBLING
(4) Assemble Pump frame as drawn in Fig. 7.
Fig. 7
1. Pass each M5x25 Hex bolt through
Wave washer, Flat washer and O ring.
Note: Be careful not to give damage to O ring
when mounting it to the bolt.
In case of repairing of Pump section without replacing the Engine
2. Mount one each of Washers (0.5mm thick and 0.2mm thick) to Drive shaft of the Engine.
Then assemble Pump frame to the Engine by tightening it with four M5x25 Hex bolts.
Note: Fastening torque of their bolts have to be 2.5 -3.5 N.m.
Washers (0.5mm thick
and 0.2mm thick)
Drive shaft
(4A) In case of replacing the Engine, adjust the length of Engine's drive shaft as drawn in Fig. 8 before mounting Pump
frame to the Engine.
Fig. 8
1A. Measure the length from the stepped portion of
Drive shaft to the neck of the Engine.
If the length is between 27.4 to 29mm, mount
Pump frame to the Engine without Washer(s)
as drawn in Fig. 7.
27.4 ~ 29 mm
Drive shaft
Wad (Wave washer)
M5x25
Hex bolt
(4 pcs.)
In case of replacing the Engine
Engine
Gasket (Flat washer)
O ring
Pump frame
2A. If the length is shorter than 27.4 mm, adjust
the length to 27.4 ~ 29mm by adding some
Washer(s) as drawn below. Then mount Pump
frame to the Engine as drawn in Fig. 7.
Note: Use Washers (0.5mm thick and 0.2mm thick)
when adjusting the length.
27.4 ~ 29 mm
Washer(s)
Drive shaft
P 6/ 10
M5x25 Hex bolt
Engine
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