2013 Western Star 4900SA
Cummins ISX 11.9
Roots DVJ 1021
CUSCO 5327 HYDRO-EXCAVATOR UNIT, EQ# 6670JDS
NOTE: UNIT IS PRICED IN CANADIAN DOLLARS
3000 USG + 3% Outage
Design shall withstand 25-PSI internal pressure and full vacuum.
78" OD or to be determined by engineering for best weight and balance.
2" brass pressure vent, 15 PSIG setting mounted top of tank.
20” diameter internal shut-off with 16” stainless steel float disc assembly, 14” rubber seat and dual 8” flanged outlets.
One anti surge mounted on reinforcing pad.
Circumferential reinforcement rings with tank support feet.
20" diameter located top of tank.
Stainless Steel construction rotary float gauge with 6” float ball assembly located on
driver’s side of tank shell with grab handle and tank full alarm (micro switch connected
to BU alarm).
Hydraulic full opening rear door assembly with 6 hydraulic rear door bolts, neoprene
rubber rear door gasket, dual double acting side mounted hydraulic cylinder and safety
6" Betts valve with 6" sand pipe / deflector plate assembly, aluminum Kamlok fittings
mounted on rear head. Note sand pipe to be slotted and covered with expanded metal
on side facing the head.
6" Betts air operated valve with aluminum Kamlok fittings mounted on rear head.
Dual 20" diameter cyclones mounted on 20" diameter drop box with side swing clean
out, 4" brass drain valve and aluminum kamlok fittings 20" diameter washable inline
S.S./fiber filter element, 100 micron for protection of blower.
12" intake and exhaust silencers.
Dual 8" diameter with 8" quick disconnect rubber boot assemblies. Note: boot
assemblies to have mechanical fasteners as well as clamps to secure t piping.
4" brass manual vacuum relief valve and 12" inline check valve assembly
Roots DVJ 1021 Blower 5184 CFM free air rating, 4100 CFM @ 18"Hg, 27"Hg
Driven from air shift transfer case.
PRESSURE UNLOADING SYSTEM:
Mounted on hydraulic dump sub-frame with suction strainer, diffuser, fill cap, hydraulic
oil filters and sight glass.
HYDRAULIC DUMP SYSTEM:
Full-length hydraulic dump sub-frame with 20 ton, 3 stage double acting dump cylinder,
rear dump pivot assembly and safety brace.
Hydraulic vibrator assembly mounted bottom of tank with reinforcing pad, heavy-duty
mounting channel, pressure relief valve and variable speed control.
4-spool valve body for control of hydraulic dump, rear door, vibrator and high-pressure
Turbovac gauge panel assembly with tank vacuum/pressure gauge, hydraulic pressure
gauge and filter element vacuum gauges.
Full-length side toolboxes for storage / fender assembly with anti-sail mud-flaps and
rear tire skirt, installed both sides of tank. Complete with lockable fold down doors and
seal. (Similar to Horizon Utilities)
12” wide walkway assembly, full length located on driver side with safety railing and
ladder. Heated stand up locker installed on driver’s side beside water tank.
WATER TANK CAPACITY:
Separate 1000 USG located in front of waste tank compartment, permanently attached
to subframe (does not dump with waste tank).
WATER PUMP SPECS:
18 gpm 3000 psi Giant water pump, hydraulically driven with a short coupled shaft,
complete with manual rewind hose reel and 50’ of 3/8” hose / handgun (with quick
disconnect nozzle), mounted inside a heated cabinet on side of truck chassis. Water
pump to run simultaneous with blower. (includes hyd oil cooler) Additional digging
wand with 3000 psi ball valve and dual female quick disconnects as per attached
Hydraulically driven from air shift PTO mounted on transmission with hydraulic pump
and motor. Electric over air control of valve section for water pump to allow for
water pump operation (off and on) from pendant controls.
Maintains constant system operation pressure, protects pump from excess pressure.
HOSE REEL ASSEMBLY:
Manual rewind hose reel complete with 50’ of 3/8 high pressure hose, mounted inside
heated cabinet. Note: provision made in cabinet door for hose to pass through and still
allow the door to close to keep heat in.
NOTE: Re-circulation pump (12 volt Flo-Jet) installed inside heated cabinet with
appropriate shut off valves to circulate the water from the suction line back to the tank
via the by-pass line. This will keep these lines from freezing during travel times to the
job. Note: water does not have to circulate through water pump as it is inside heated
Air operated BF valve for remote operation
2" fill line on curb side with anti-siphon air gap protection, basket type suction strainer
and valve, located for easy access for cleaning and fill connection.
Located top center of tank
1-1/2” diameter sight tube installed on water tank
GLYCOL RECOVERY SYSTEM:
Permanently mounted Glycol tank (1.25 times capacity required to flood system)
plumbed to the suction circuit of the wash pump for winterizing. This will permit full
protection to the pump, regulator, return line and hose reel. The glycol can be returned
to the holding tank when operation with water commences again. Note handgun to
have quick disconnect nozzle.
8” Cusco” TC 407/412 hydraulic boom assembly rear mounted, 270 degree rotation with
25 ft reach, 8” isolation valve, 6-way pendant control (up/down, rotation, extension), 8”
suction hose with bandlock hose fitting. Note hydraulic boom controls, mounted on
boom, to be protected from damage due to tree branches passing over top of truck. 6”
SS Kamlok and cap for easy access for cleaning and a 6” air operated vent valve is to
be installed in the blower piping, close to the blower, to vent the tank instead of isolating
the boom. Vent valve control to be on boom pendants.
LED lighting with three lamp rear module assembly, clearance lamps, reflectors, three in
a row clearance markers, two rear spotlights, two curb side work lights and one rear
traffic advisory arrow board.
Rear bumper for protection of external valves with platform/step assembly and rear dirt
The entire tank and body of the vacuum system shall be sandblasted and primed with
two (2) coats of primer and painted with two (2) coats of single stage Sherwin Williams
ADDITIONAL ITEMS INCLUDED:
- Water pump to be controlled (on and off) from pendant controls. (note: boom
isolation valve operation to be converted to a latching relay to make room for
water pump control)
- Two 2-Tube holders installed, one on each side of tank, to hold two 8” x 60”
aluminum suction tubes each. (includes 8” tubes with Bandlock connections 4 in
- 980,000 BTU diesel fired boiler for heating the high pressure water from the
water pump. Complete with fuel pump, thermostat and high temperature shut off.
Permanently Installed on truck chassis in heated cabinet
- Hydro Trenching digging wand as per drawing (two female quick disconnects one
90 degree elbow and one 3000 psi ball valve assembled to customers
- Wireless boom controls in addition to pendant controls listed in quote
- Additional heated locker for work clothes and cutting wands.
- Splash deflector at rear of tank to prevent material from spraying forward when
rear door is opened.
Complete system installed on a 2013 Western Star Tri Drive Chassis, Cummins ISX,
485 HP, Eaton Fuller RTLO-16918B Transmission
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