700 ah battery seems a bit small for a VNA truck, how big / heavy is the actual truck?
Ive looked after man up vna before & they had 1000 ah batteries plus built in 3 phase on board charging of power rails.
About the up time figure of 80%, is that just for breakdowns / service time OR is damage time included in that figure to?
the trucks are danbach vna running with 700-ah chloride or hawker batteries no change over.
the dust is mostly from cardboard the area is industrial so its a naturally dusty environment anyway.
re abuse the trucks are used in a cramped location so strike damage occurs usually to the rotate stops or wire guidance sensors if our drivers are negilgent we deal with it but the units are certainly not caressed and the operators are sometimes temporary so so ownership care is difficult.
the reason i ask about running up time is our maintainance company attempts to keep above 80% (they tell me thats good) and i wanted to bench mark check with someone who's independand.
cheers
Jer
Agree with Ed T,
The toughest operation I've seen on lift trucks is at bulk brake truck terminals that use LP solid (cushion tire lift trucks). These terminals work 24 hrs/day 7days/week 365days(or 366) per year. At two different companies they averaged 5.5 hour per 8 shift.
It would be hard to answer your question
1.) You indicate high hour usage (15 out of 24 is significant when you deduct lunch breaks 2 or 3), morning & afternoon breaks (say 15 min./brake) x number of shifts, work shift change time 15 minutes per change, battery exchange time.
2.) The units need planned maintenance service at about every 170 operating hours based on a normal & clean operation at 15 hours per day the units be done for PM service every 20 days.
3.) When you say abuse what does that mean - abuse can be a simple as breaking a flashing light or running the unit off the shipping dock & any thing in between. If operator abuse what does management do to correct this or they just do nothing & let the operators run the show.
4.) How many work shift are there 2 or 3
5.) What type of dust are you talking about? - carbon dust, gypsum dust, grain dust, granite cutting dust, West Texas or Oklahoma dust storm dust or just dirt type dust because no one sweeps or scrubs the floors.
I would suspect even with this type of info - it would be hard to project % down time.
is this a battery electric, "vna" that has 2 or 3 batteries to swap out? running 15 hours out of 24 is rough on any truck, and electric trucks require a nearly dust free environment, unless they are verrrrrry specially spec.
Hello ,
The Vna it is not dood select for dust area !