Bissell HS-20 instruction manual Replaceable Parts

Maintenance

3-7 REPLACEABLE PARTS

The following is a list of replaceable parts for the Varian HS-20 Diffusion Pump.

Part Number	Description
84358301	Cold cap assembly (includes No.10-32 SST Rd Hd screw and No. 10-32 hex nut) SST
660811494	Cold cap gasket (see Figure 3-2)
F2622001	Cold cap follower (brass)
75786001	Cold cap nut
622445026	Cold cap female coupling, 1⁄2-inch OD tube x 3⁄8-inch FPT, Imperial Flexfitting No. 66-FL
L6367301	Sprint coupling
84350301	Jet coupling assembly
84889301	Foreline baffle assembly
F6097301	Sight glass service kit (includes glass tube, O-rings, and fittings; valves not included)
	(for pumps built prior to October 1994)
F1755301	Sight glass assembly (includes seal valve, glass tube, removable bracket, cover for
	sight glass assembly, and fittings) (for pumps built prior to October 1994)
77261001	Threaded plug, fill and drain
K9050001	Upper thermal switch, 185°F
K9050002	Lower thermal switch, 390°F
656118114	Nickel wire, No. 14 AWG
648056329	Nickel lug for No. 14 AWG
647320025	Heater element with leads (2000W, 200V)
647320020	Heater element with leads (2000W, 240V or 380V)
647320035	Heater element with leads (2000W, 400V)
647320040	Heater element with leads (2000W, 430V)
647320045	Heater element with leads (2000W, 440V)
647320030	Heater element with leads (2000W, 480V)
K7108001	Crush plate (replace with each heater)
K7107001	Clamping plate
L6514001	Insulation for heaters – Cerablanket 0.50 inch thick
84497001	Heater cover plate
L9223001	Sight glass (for pumps built after October 1994)
K0377165	O-ring kit; includes:
	1 butyl ASA inlet flange O-ring (84349002
	1 butyl ASA foreline flange O-ring (660893432)
	8 Viton fill and drain O-rings (660892213)
	1 Sight glass O-ring (660892240)
	1 Graphite sight glass gasket (L9228001)
695472008	DC-702 diffusion pump fluid (one-gallon container)
695474008	DC-704 diffusion pump fluid (one-gallon container)
695475008	DC-705 diffusion pump fluid (one-gallon container)

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