Yanmar 3YM30 Sevice Manual page 91

Items
Scale solvent Scale solvent
Neutralizer
(caustic soda)
pH test paper
Antirust
Anti freeze
Cleaning agent
[Notice]
It is recommended that the liquid gasket of Three Bond TB1212 should be used for service work.
Before providing service, observe the cautions below:
1) Build up each gasket equally.
2) For a bolt hole, apply liquid gasket to the inside surface of the hole.
3) Conventionally, Three Bond TB1104 (gray) or Three Bond
TB1102 (yellow) is used for paper packing though single use of one of these bounds is not effective.
4) If conventional packing is used, do not use liquid packing.
Usual contents
1 box • The scale solvent removes scale in a short time.
(1 to 10 hours)
(4 kg × 4
• Prepare water (seawater is possible) in an
removers)
amount that is about 10 times the weight of the
1 box
solvent. Mix the solvent with water.
(2 kg × 4
• Just dipping disassembled part into removes
neutralizers)
scale.
To shorten removal time, stir remover mixture.
• If cleaning performance drops, replace remover
mixture with new remover mixture.
• Neutralize used mixture, and then dispose of it.
To judge cleaning performance of mixture, put
pH test paper into mixture. If test paper turns
red, remover mixture is still effective.
Add antirust to fresh water system. Then operate
engine for approximately 5 minutes. Antirust will be
effective for 6 months.
Add antirust to fresh water system at the cold area
to engine operate.
• The cleaning agent removes even carbon
adhering to disassembled parts.
• If a cleaning machine is used, prepare 4 to 6%
mixture of 60° to 80° to ensure more effective
cleaning.
76
4. Disassembly and reassembly
Features and application
Oil pan mating surface
Buildup of TB1212