Accucraft trains UNION PACIFIC 4-8-8-4 BIG BOY Instruction Manual - page 4
INSTRUCTIONAL MANUAL
UNION PACIFIC 4-8-8-4 BIG BOY, ELECTRIC
INSTRUCTIONAL MANUAL
UNION PACIFIC 4-8-8-4 BIG BOY, ELECTRIC
Model Features:
This production model has been handcrafted for Accucraft Trains by AMMC, which
is one of the most respected makers or large scale brass models. This museum
quality model features:
●
Full cab interior details, with operating cab windows
●
Detailed boiler with fittings, domes, pipes and handrails
●
Operating steel drive rods, valve gear and cross heads
●
Prototypical livery and lettering
●
Steel helical gears in a die-cast transfer box
●
2 independent Pittman Motors
Technical Specifications:
Scale/Gauge: 1/32, 45mm Gauge
Total Weight: 30.4 lbs.
Locomotive Information:
Length: 33.5 inches (851 mm)
Width:
4.25 inches (108 mm)
Height:
6.3 inches (160 mm)
Tender Information:
Length:
17 inches (432 mm)
Width:
4.05 inches (103 mm)
Height:
6.37 inches (162 mm)
Recommended Radius: 3M, 10ft.*
Power:
Two Pittman GM94
13-2, 0-24V DC
11:5.1 Gear Ratio
Peak rated output torque:
187 oz-in
Output Shaft stall torque:
911 oz-in
*Be sure to leave at least a 3” clearance (measured from the inner rail) to allow for
overhang.
3
8
3.
The locomotive is firmly
taped to a 1/2 ” wood board which
is then fastened to the metal
case with 4 - M6 bolts. Bolts
must be removed before lifting
the locomotive with wood board
from the metal case.
4.
Place taped locomotive
on a flat surface. Carefully cut
the tape along the wood board
side surface. Be sure to cut both
sides of the wood board. Slowly
lift the tape from the locomotive.
Be very careful with small parts.
Tape cannot be re-used to re-
pack the model. Use new packing
tape if necessary