Skip to main content ↑ ↓
Topic: HWH Pressure Switch (Read 551 times) previous topic - next topic

HWH Pressure Switch

I'm finally getting around to rebuilding my rear six pack. I got the pressure switch from Foretravel and Billy Jack assured me it was the correct switch. However, it is a completely different form than the original and is rated at 3,000 psi. The new one is an HWH part (RAP0933) but I can't find it on the HWH site. Anyone have one that looks like the second photo and if so, is the white wire with the ring terminal a ground or what? I'm attaching a photo of both. Thanks.
jor
93 225
95 300
97 270
99 320

Re: HWH PRESSURE SWITCH

Reply #1 –
Quote from: jor –
I got the pressure switch from Foretravel and Billy Jack assured me it was the correct switch. However, it is a completely different form than the original and is rated at 3,000 psi. The new one is an HWH part (RAP0933) but I can't find it on the HWH site.
Did you mean to write "3,000 psi"?  The rear HWH pressure switch is only supposed to read pressures around 85 psi.  Doesn't seem (to me) like a 3,000 psi rated switch is gonna be very accurate at such a low working pressure (3% of the maximum range?).

While back we were looking for replacement pressure switches to go on the rear 6-pack.  Post below has some part numbers (Reply #11).

6 pack rebuild
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: HWH PRESSURE SWITCH

Reply #2 –
The 3000 psi switch is for the hydraulic HEH system
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins
 

Re: HWH PRESSURE SWITCH

Reply #3 –
Thanks to you both. Foretravel Parts is usually very good but even they screw up from time to time. For now I'm going to use my old Nason and order one of those replacements noted in Chuck's previous post. Either that or convert my air system to hydraulic!
jor
93 225
95 300
97 270
99 320