6
Ref. F.1
Ref. E.4
D.4 The length and breadth of foundation should be at least
150-300 mm (6-12”) more than base rail length and
breadth respectively.
D.5 Ensure that the concrete is completely set and hardened
before positioning the generator set.
D.6 It is recommended to have foundation height about 100-
150 mm above ground level, it helps to maintain
cleanliness of genset.
D.7 Check the foundation level diagonally as well as across
the length for even flatness. The foundation should be
within ± 0.5
o
of any horizontal plane.
D.8 The base rail of genset should be leveled using shims
before grouting with foundation bolts. Care should be taken
so that the shims are placed on both sides of foundation
bolts. If shims increase above 1.5 mm then machined
spacer plates should be used in combination with shims.
E Unloading
E.1 Provision for genset lifting is provided on base-rails. Unload
the genset from base rail by lifting with proper genset
lifting tackle or nylon sling / steel rope of suitable capacity
and crane so as to ensure no damage to oil sump, air
cleaner, radiator pipes etc.
E.2 Do not lift the genset from engine and alternator hooks.
These are designed for lifting individual items only.
E.3 Keep the genset covered with polyethylene or tarpaulin
during installation to ensure that water does not enter
inside.
E.4 Spreader bar / spacer plate of suitable size may be
required to avoid damages to genset components.
F. Air System
F.1. Vacuum indicator is supplied with all engines to indicate
choked filter.
Max air intake restriction with clean and choked filter is
as follows :
X-Series S-Series S-Series All Engines All Engines Gas
(Naturally (Turbo- with Medium with Heavy Engine
Aspirated charged) duty A/c duty A/c
mm of water column (Inches of water column)
Clean filter 250 (10) 250 (10) 250 (10) 250 (10) 380 (15) 200 (8)
Choked filter 400 (15.7) 380 (15) 500 (20) 635 (25) 635 (25) 380 (15)
Higher restrictions leads to :
- Early choking of air filter
- Low power
- Black smoke
- Turbocharger failure
F.2 Heavy duty air cleaners should be used for dusty
environment. Contact OEM / Cummins if genset is to
be installed in dusty environment. Please note that
gensets are supplied with medium duty air cleaners as
standard scope.
SPREADER BAR
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