Instruction manual

VHS-4, VHS-6 and VHS-250 Diffusion Pumps
D R A F T 6 / 1 8 / 1 3
53
86088301 Heater Cover Plate
L8998001 Heater Insulating Blanket
L8997001 Heater Cover
K0377178 O-Ring Kit includes:
❑ 3 Butyl inlet flange O-ring, Parker No. 2-332
❑ 3-Butyl-N foreline flange O-ring, Parker No. 2-379
❑ 10 Viton fill and drain O-rings (old style), Parker No. 2-112
❑ 10 Viton fill and drain O-rings (new style, Parker No. 2-113
❑ 1 PTFE gasket
❑ 1 Sight glass O-ring, Parker No. 2-226
K6948301 NEOVAC SY Diffusion Pump Fluid (1000 cc)
695474005 DC-704 Diffusion pump Fluid (500 cc)
695475005 DC-70S Diffusion Pump Fluid (500 cc)
695405005 Santovac 5 Diffusion Pump Fluid (500 cc)
86715001 Spring, Cold Cap
Commercial Screw, Rd hd machine, no. 6-32x3/16, stainless steel
Commercial Washer, flat, no. 6, stainless steel
Commercial Washer, lock, no. 6, stainless steel
Commercial Stud, no. 8-32 x 1/2, stainless steel
Commercial Screw, Socket hd cap, no. 8-32x1/4, stainless steel
Table 5-6 VHS-250 Replacement Parts (Continued)