ABSTRAK

PERENCANAAN PERSEDIAAN SPARE PART FORKLIFT TCM FD 30  PADA BIDANG MAINTENANCE DENGAN MENGGUNAKAN METODE CONTINUOUS REVIEW DI PT INDUSTRI KERETA API (PERSERO) MADIUN

Nama                                : Achmad Musonif

NIM                                   : 15050524050

Program Studi                : S1 Pendidikan Teknik Mesin

Jurusan                             : Teknik Mesin

Fakultas                           : Fakultas Teknik

Nama Lembaga             : Universitas Negeri Surabaya

Dosen Pembimbing      : Dyah Riandadari, S.T., M.T.

Manajemen persediaan merupakan aspek utama dalam pengelolaan sejumlah bahan baku atau spare part yang disimpan untuk memenuhi permintaan. Persediaan yang terlalu banyak menimbulkan modal yang tertanam untuk pengadaan terlalu besar. Sebaliknya jika terjadi kekurangan persediaan proses operasional akan terganggu dan produktivitas perusahaan akan menurun.

Jenis penelitian ini merupakan penelitian tindakan (action research). Penelitian ini dilakukan di PT INKA (persero) Madiun pada persediaan spare part Forklift TCM FD 30 dengan metode Continuous Review dimana bertujuan untuk menentukan ukuran lot  pemesanan tetap (q₀) dan titik pemesanan kembali (r) yang menghasilkan total biaya persediaan terkecil. Dalam menggunakan metode Continuous Review peramalan permintaan akan suku cadang sangat diperlukan untuk menghitung perencanaan inventory spare part.

Berikut adalah hasil perencanaan peramalan yang didapatkan. Bearing Assy diramalkan sebesar 47 unit, Roller Mast sebesar 11 unit, Kampas Kopling sebesar 3 unit, King Pin Kit sebesar 14 unit, Filter Solar sebesar 29 unit, Seal Plunger sebesar 29 unit, Filter Air sebesar 25 unit, Battery sebesar 2 unit, Starters sebesar 1 unit, Filter Oil sebesar 30 unit, dan Brush Starter sebesar 15 unit. Berikut adalah hasil ukuran lot  pemesanan tetap (q₀) dan titik pemesanan kembali  (r). Untuk Bearing Assy (q₀) sebesar 47 dan (r) jumlahnya 20 unit,  Roller Mast (q₀) sebesar 19 unit dan (r) 4 unit,  Kampas Kopling (q₀) sebesar 11  unit dan  (r) jumlahnya  3 unit,  King Pin Kit (q₀) sebesar 19 unit dan (r)  jumlahnya 5 unit,  Filter Solar (q₀) sebesar 41 unit dan  (r)  jumlahnya 9 unit,  Seal Plunger (q₀) sebesar 46  unit dan (r)  jumlahnya 8 unit,  Filter Air (q₀) sebesar 32  unit dan  (r)  jumlahnya 7 unit,  Battery  (q₀) sebesar 2  unit dan  (r)  jumlahnya 1 unit,  Starters  (q₀) sebesar 2 unit (r)  jumlahnya 1 unit, Filter Oil  (q₀) sebesar 31  unit (r)  jumlahnya 7 unit, dan Brush Starter (q₀) sebesar 22  unit  (r)  jumlahnya 5 unit.

Kata kunci: Inventory Management, Spare Part Forklift TCM FD 30, Model Continuous Review.

ABSTRACT

INVENTORY PLANNING FOR SPARE PART FORKLIFT TCM FD 30 MAINTENANCE FIELDS USING CONTINUOUS REVIEW METHOD IN PT INDUSTRIAL TRAIN (PERSERO) MADIUN

Name                      : Achmad Musonif
NIM                       : 15050524050
Study Program     : Bachelor of Education Mechanical Engineering
Department           : Mechanical Engineering

Faculty                   : Engineering

Instution                : Surabaya State University
Supervisor             : Dyah Riandadari, S.T., M.T..

.

Inventory management is the main aspect in managing a number of stored raw materials or spare parts to meet demand. Too much inventory raises embedded capital for procurement too large. Conversely, if there is a shortage of inventory, the operational process will be disrupted and the productivity of the company will decrease.

This type of research is action research. This research was conducted at PT INKA (persero) Madiun on the spare parts for TCM FD 30 Forklift with Continuous Review method which aims to determine the size of the fixed lot lot (q0) and reorder point (r) which results in the smallest total inventory cost. In using the Continuous Review method, forecasting demand for spare parts is needed to calculate the spare part inventory planning.

The following are the results of the forecasting plan obtained. Bearing Assy is predicted to be 47 units, Roller Mast is 11 units, Coupling Clutch is 3 units, King Pin Kit is 14 units, Solar Filter is 29 units, Seal Plunger is 29 units, Water Filter is 25 units, Battery is 2 units, Starters for 1 unit, Oil Filter for 30 units, and Brush Starter for 15 units. The following are the results of the fixed order lot size (q0) and the reorder point (r). For Bearing Assy (q0) of 47 and (r) there are 20 units, Mast Roller (q0) is 19 units and (r) 4 units, Clutch Coupling (q0) is 11 units and (r) is 3 units, King Pin Kit (q0) of 19 units and (r) number of 5 units, Solar Filter (q0) of 41 units and (r) number of 9 units, Seal Plunger (q0) of 46 units and (r) in number 8 units, Water Filter (q0 ) of 32 units and (r) the number is 7 units, Battery (q0) is 2 units and (r) is 1 unit, Starters (q0) of 2 units (r) are 1 unit, Filter Oil (q0) is 31 units ( r) the number is 7 units, and the Brush Starter (q0) is 22 units (r) the number is 5 units.

Keywords: Inventory Management, TCM FD 30 Forklift Spare Parts, Continuous Review Method.