TOHATSU BFT 250A, Service Manual

Page: 596 / 639

19-34
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TRIM/TILT
Remove the oil tank cap [1] and check wether the ATF
is at the upper limit of the filler port [2].
Operate the power tilt motor to compress the each rod
(page 19-31) fully.
Operate the power tilt motor to extend the each rod
(page 19-31) fully again, and read the pressure gauge
to measure the lower chamber hydraulic pressure.
If a sharp pressure drop is observed, check the power
tilt motor for a damaged oil seal (page 19-19).
If the hydraulic pressure is lower than the specified
pressure, check for oil leaks.
Measure the upper chamber hydraulic pressure (page
19-34).
Upper chamber hydraulic pressure
After measuring the lower chamber hydraulic pressure,
remove the special tools (oil pressure gauge joint B [1]
and oil pressure gauge) with each rod fully extended.
Install the special tool and tighten the specified torque.
Attach the special tools as shown.
LOWER CHAMBER HYDRAULIC PRESSURE:
8,826 – 11,768 kPa
(90 – 120 kgf/cm
2
, 1,280 – 1,707 psi)
[1]
[2]
PRESSURE GAUGE,
0 – 5,000 psi
TOOL:
Oil pressure gauge joint A [2]
07SPJ-ZW1010A
TORQUE: 9.0 N·m (0.92 kgf·m, 6.6 lbf·ft)
TOOL:
Pressure gauge, 0 – 5,000 psi [3] 07KPJ-VD6020B
[3]
[1]
[2]