Ka ịkọwapụta nke ọma wheel nke ise, ọ dị mkpa iji kwekọọ na mkpa nke traktọ gị, traktị gị na ụzọ gị. Nke a na-ada mgbagwoju anya karịa ka ọ dị. Akụkọ a ga-enye:

- A general overview of the spec’ing process and the fifth wheel options available today.

• Ndozi mgbochi akwadoro iji bulie ọrụ ọrụ wheel nke ise na ndụ.

JOST TAPE nke ise wheel 37C nrụzi ngwa ụgbọala na-adọkpụ

- The do’s and don’ts associated with using your fifth wheel – specifically coupling and uncoupling the trailer and fifth wheel.

Fifth wheel manufacturers categorize their products differently, so it is highly recommended that you work with a manufacturer’s representative to make sure your fifth wheel choice is the best one for you.

Nzọụkwụ nke Mbụ

Spec’ing a fifth wheel begins with categorizing your hauling type. In other words, what are you going to do with this truck and trailer? As a general rule, fifth wheels can be put into three workload classifications:

- Ọrụ ọkọlọtọ.

- Ọrụ adịghị mma.

- Ọrụ siri ike.

Enwere isi ihe atọ na-achịkwa nke n'ime nhazi ọrụ ndị a ga-akacha mma:

- oke nchikota ibu.

- Road type – operating environment and type of equipment used in an application.

- Axle limitation – maximum number of towed axles.

It’s important to note that the choice of a fifth wheel shouldn’t be based on weight alone. Service conditions are important because, for example, a heavy load pulled on a paved road places less stress on a fifth wheel than a lighter load pulled in severe off-highway conditions.

Ụdị ụgbọala na-adọkpụ ndị mejupụtara ụgbọ mmiri gị dịkwa mkpa. Ụzọ dị mma isi leba anya n'echiche a bụ ịmara ọnụ ọgụgụ kachasị elu nke axles a na-adọkpụ.

Armed with the workload classification information, you’ll want to have a discussion with the fifth wheel manufacturer. Each manufacturer has different specifications for each duty or workload class, as well as a variety of fifth wheel models for each class.

Biko mara na mgbe ị na-ahọrọ wiil nke ise, ọ bụrụ na ngwa ma ọ bụ ojiji ụgbọ ala na-etinye ikike kachasị na ụfọdụ wheel nke ise, a na-atụ aro nhọrọ nke wheel nke ise nwere ikike dị elu. A na-atụ aro ikike ọzọ iji nye ndụ ọrụ ka mma karịa ogologo oge.

Nzọụkwụ nke abụọ

Ozugbo ị kpebisiri ike na nhazi ọkwa ọrụ gị bụ ọkọlọtọ, ọ dị oke ma ọ bụ siri ike, nzọụkwụ ọzọ bụ ịhọrọ ụdị wheel nke ise dabara na ọrụ ụgbọ mmiri gị. Ọtụtụ ndị na-emepụta ihe na-enye ọtụtụ ụdị wheel nke ise maka nhazi ọkwa ọrụ ọ bụla.

Wheel nke ise nke ọ bụla nwere efere elu na otu ugwu. 

Nhọrọ Efere kacha

- Greasable – The kasị nkịtị wheel nke ise, ndị a a na-achọkarị griiz na n'elu efere griiz ọwa na mkpọchi usoro, na mkpa oyi akwa n'elu ndị ọzọ nke n'elu efere. Lelee onye nrụpụta maka ụzọ griiz a kapịrị ọnụ na ọnụọgụ ha kwadoro.

- Low-lube – Nhọrọ a na-eme ka wheel nke ise dị mfe na obere oge iji nọgide na-enwe n'ihi na ọ dịghị achọ griiz n'elu elu. Usoro mkpọchi ka kwesịrị ka tee mmanụ na idobe ya.

- Nchọpụta mkpọchi eletrọnịkị – Electronic sensors built into the top plate communicate with an in-cab indicator to let the driver know when the kingpin is positioned in the lock. This provides an additional check to supplement the required driver visual inspection and tug test.

- Agbachiri ụkwụ nke ise – This is a non-rocking fifth wheel assembly mainly for frameless dump applications.

Nhọrọ ugwu

There are basically two kinds of fifth wheel mounts: stationary and air sliding. Fifth wheel mounts are available in different heights so they can be ordered based on the fleet’s particular needs. 

Tụlee nha taya, ihe mkpuchi, ụdị ụgbọala na-adọkpụ na ịdị elu nke ụgbọala na-adọkpụ mgbe ị na-ahọrọ ugwu ka traktọ na ụgbọala na-adọkpụ nwere ike ịrụkọ ọrụ nke ọma n'ebughị oke iwu kwadoro.

- Ugwu kwụ ọtọ – Stationary fifth wheel mounts are ideal for applications where an entire fleet is comprised of vehicles of the same length and the same trailer kingpin setting and axle loading. They are typically lighter than sliding mount fifth wheels.

- Ugwu slide ikuku - Ikuku na-arụ ọrụ ma ọ bụ ntọhapụ ikuku bụ nhọrọ ewu ewu maka ngwa na-achọ mgbanwe ugboro ugboro. A na-achịkwa ọrụ mmịfe ahụ site na cylinder ikuku ma na-achịkwa ya site na mgba ọkụ na ụgbọ mmiri.

A na-enweta ihe nrịbama dị n'ụdị ogologo mmịfe dị iche iche iji jikwaa trailers nwere ogologo dị iche iche na ntọala kingpin, na ọbụna na-ebufe ibu karịa n'etiti axles traktọ.

Mgbanwe imegharị ihe bụ uru ọzọ nke mgbago ụkwụ ụkwụ nke ise na-amị amị. Ọ ga-anabata ụgbọala na-adọkpụ nke nwere obere gia ọdịda ma na-enye ohere ka onye ọkwọ ụgbọ ala gbasaa unit ahụ maka nkasi obi kachasị mgbe ibu na-enye ohere.

Ngwunye na-agbagharị na-enyekwa onye ọkwọ ụgbọ ala nhọrọ ịdị elu dị iche iche, na-enye ohere maka ibelata ọdịiche dị n'etiti traktọ na ụgbọala na-adọkpụ iji meziwanye akụ na ụba mmanụ na ọbụna kwe ka idobe ibu dị mma, dị ka ikwe ka obere akụkụ gaa na tankị.

Ndụmọdụ: Iwu chọrọ nyocha anya iji jide n'aka na wheel nke ise na-arụ ọrụ, yabụ ọ dị mkpa mgbe niile ịpụ na traktọ wee lelee ya.

Nhọrọ ndị ọzọ

Ụfọdụ ndị na-emepụta ihe na-enye nhọrọ ndị ọzọ, gụnyere ụfọdụ nke enwere ike iji na usoro wheel nke ise ọ bụla. Dịka ọmụmaatụ, Fontaine Fifth Wheel na-enye usoro enyemaka igwefoto nke na-enye ohere ka onye ọkwọ ụgbọ ala lelee di na nwunye na-adọkpụ ma kpọchie ma ọ bụ na-ejikọtaghị na taịlị.

Jụọ onye nrụpụta wheel nke ise gị mgbe niile ma enwere nhọrọ ọhụrụ ọ bụla dị maka ịtụle.

ỌNỌDỤ Ịrụ ọrụ kacha elu

Fifth wheel manufacturers’ PM schedules vary and severe duty fifth wheels may require more frequent PM intervals to ensure peak performance. Always consult the manufacturer’s specific recommendations to get the most service life out of your fifth wheels.

N'ikwu okwu n'ozuzu, mmezi mgbochi ụkwụ nke ise bụ usoro nzọụkwụ ise. 

1. Hichaa ma wetuo wheel nke ise. Starting with the fifth wheel in the closed position, use a suitable solvent to clean and degrease the fifth wheel – especially the top plate, locking mechanism and throat area.

2. Nleba anya. Mgbe ihichachara, lelee akụkụ mebiri emebi ma ọ bụ na-efu.

- Gbaa mbọ hụ na agbakọnyere wheel nke ise na traktọ ahụ nke ọma.

- Lezienụ anya nke ọma na welds na mpaghara gburugburu oghere bolt.

- Gbaa mbọ hụ na enweghị mgbawa ma ọ bụ ihe mgbochi na-efu efu.

- Gbaa mbọ hụ na ọ nweghị ihe kwụpụrụ n'okpuru wheel nke ise.

- Jide n'aka na ntụtụ mgbịrịgba dị n'akụkụ abụọ dị n'ebe ma chekwaa ya.

3. Nyocha ọrụ. Jiri aka ndọta mepee mkpọchi. Fanye ngwá ọrụ kingpin iji hụ na usoro mkpọchi ahụ na-arụ ọrụ nke ọma. Gbaa mbọ hụ na a na-etinye usoro mkpọchi n'azụ eze. Mgbe ahụ, weghachi aka ịdọrọ ya.

Mepee ma mechie wiilị ahụ, na-achọ ihe mmechi dị ngwa, dị nkọ. Ọ bụrụ na omume ahụ dị umengwụ, ọ nwere ike ịbụ n'ihi mmụba nke griiz ochie ma ọ bụ akụkụ gbajiri agbagọ na-eme ka njikọ ụfọdụ. Ọ bụrụ na wiil ahụ siri ike imeghe, ọ nwere ike ịbụ n'ihi usoro mkpọchi siri ike ma ọ bụ enweghị mmanụ.

4. Mgbanwe usoro mkpọchi. Check the adjustment procedure. Because this is different for each fifth wheel manufacturer, consult the manufacturer’s manual for specific instructions.

5. mmanu mmanu. Begin by closing the locking mechanism. Use care when the lock closes because the handle can move in quickly. Here again, each manufacturer’s locking mechanism is different, so check your fifth wheel manufacturer’s lubrication recommendations. After greasing the locking mechanism, work it back and forth several times to distribute the grease.

Na-agbasa griiz n'elu elu nke elu efere (adịghị mkpa maka obere lube ise wiil). Ọ bụrụ na enwere akpa etinyere n'ime efere ndị dị n'elu, jide n'aka na ha juputara na griiz. Hapụ ebe efere dị n'elu gburugburu usoro mkpọchi na-enweghị griiz. 

Maka wiilị nke ise na-amị amị, tinye obere mmanu mmanu pivot nke usoro ahụ. Mgbe ahụ rụọ ọrụ ahụ iji hụ na ọ na-arụ ọrụ nke ọma.

Lightly oil the other moving parts in the fifth wheel. Check the manufacturer’s recommendations for regions that experience extreme and/or prolonged freezing temperatures.

Ịkpachara anya: mmanu mmanu karịrị akarị na-efu oke ọnụ ma na-ebute oke oke n'ihe mejupụtara wheel nke ise. Ịṅụbiga mmanya ókè nwere ike ịkpata nsogbu ịkwọ ụgbọala.