1. Wɔ bulldozer mu no, nneɛma atitiriw a ɛwɔ hydraulic nhyehyɛe no mu no bi ne hydraulic pump station, hydraulic oil tank, hydraulic valves, oil-gas cylinders ne hydraulic pipelines, etc{2}} saa nneɛma yi, denam nkitahodi, control ne regulation, form a complete pumpri ne kindleic with the kind{3} ntam a an an aing the abing Tumi, a mpɛn pii no ɛyɛ anyinam ahoɔden motor ne pɔmpɛ nipadua, a wɔde di dwuma de ma ngo a ɛwɔ nhyɛso kɛse ma ahoɔden a ɛwɔ hydraulic cylinder ne hydraulic motor mu.
2. Wɔ hydraulic nhyehyɛe mu no, hydraulic valve no di dwuma titiriw. ɛyɛ nea wɔakyekyɛ mu titiriw abien: check valves ne multi-way valves. ɔkwan biako so no, check valves betumi ahwɛ ahu sɛ ngo a ɛkɔ so yiye wɔ hydraulic system no mu no na ɛsan nso siw hydraulic components fi-kwan a ɛkɔ so no so no yɛ nea ɛkɔ so wɔ valve no mu{4} Op valve{4'' Cylinders wɔ hydraulic nhyehyɛe no mu, na ɛnam so wiee asase so adwumayɛ ahorow.
3. Oil ne gas cylinder yɛ ade a ɛho nhia a ɛwɔ hydraulic nhyehyɛe no mu, titiriw no wɔde wie hydraulic adwuma a ɛho hia a ɛwɔ bulldozer. ɛyɛ piston, ngo cylinder, an port, sealing elements ne mfiri a ɛbɔ ho ban{2}} it realies te sɛ nea wɔde piapia ne nea ɛrefi adi no mu a wɔde ma no mu no yɛ adwuma ne nea wɔde fi adi no mu a wɔde wɔn ho kɔ, twe a wɔde wɔn ho fi mu no ho, twe a wɔde wɔn ho fi mu no ho, twe a wɔde wɔn ho fi mu no ho no yɛ adwuma te sɛ nea wɔde wɔn ho hyɛ mu, twe a wɔde wɔn ho fi mu no ho no yɛ adwuma te sɛ nea wɔde wɔn ho hyɛ mu no yɛ adwuma te sɛ nea wɔde tu kwan ne nea wɔde fi adi no mu a wɔde wɔn ho fi mu no ho a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu no yɛ adwuma a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu no yɛ adwuma a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a wɔde wɔn ho hyɛ mu a ɛyɛ adwuma yɛ ade biako nti a ɛma wotumi de bulldozer di dwuma kɛse wɔ nnɛyi mfiridwuma mu.
