Page 29 - booklet draft

6.Mechanical(DLS-KZJ)

1. SYSTEM IMPROVEMENTS
1. Test Stand for Pantograph Plunger Box Assembly
WAG-7 electric locos are fitted with AM-12 type pantograph.
Plunger box assembly is a critical component of Pantograph. After
overhaul of plunger box assembly, the same is fitted on the
pantograph assembly and testing is done. If any defect is noticed,
it is removed, overhauled and re-fitted on pantograph. Hence to
avoid testing on pantograph, a test stand is designed and
fabricated for testing of PLUNGER BOX ASSEMBLY. This reduces the
time of re-work and also spare plunger box assemblies are made

ready, before fitment on pantograph.